LIONSCOOL Leg Extension and Curl Machine V4.0, 800lbs Capacity Adjustable Seated Leg Extension, Lying Leg Curl Bench, Cable Operated 2” Plate Loadable Lower Body Exercise Equipment for Home Gym
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Availability:
In Stock.
Arrives
Jul 25 – Jul 29
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Features
- Upgraded Ultra Robust Smooth Machine: Strong hamstrings and quadriceps are crucial for balance, speed and coordination. You'll wish every day was leg day with LIONSCOOL Leg Machine. Protected by Patent No. US 12,427,372 B2. Unique cable pulley system supplies consistent resistance throughout the motions, differs from traditional lever operated machine and assists with the growth of stronger and more defined muscles. Use for seated leg extensions & lying leg curls (excludes seated leg curls).
- Excel in Your Toughest Workouts with Fortified Structure: The weight arm combined with a strong aluminum pulley and reinforced 8mm-thick cable, connected with upgraded technique, allows for up to 400LBS plate loading capacity, and will last through grueling workouts. The weight support frame has been upgraded with 10-gauge steel and extended feet, eliminating wobbling or foot lifting during high-intensity workouts. Overall heavy-gauge steel ensures a user capacity of 400LBS.
- Experience Exercise with Smooth Pulley System: Our Innovative pulley system delivers consistent resistance tailored to the specific strength curve of the targeted muscle group. We specially design an adjustable bolt to regulate tension in case the cable stretches out over the years. You will find pleasure in the seamless resistance during your workout. Plate loading post measures 7.1 per side and fits 2-inch weight plates smoothly with its hard chrome plated surface.
- Effortless Accessibility, Smart Adjustability: We discard the impractical knee holder to make it effortless and smooth to enter and exit. 6 seat depth adjustable backrest will accommodate users of 5'2'' to 6'2''. Our self-adjusting foot roller with its 9 angles adjustable arm will conform to your leg position naturally (convertible and lockable via quick-pin). Instantly switch between seated and prone training modes with one-pull pin.
- Innovative Seat Design, Feel Comfort in Details: We have unique three-segment seat structure (seat, mid-section, backrest) to maximize your comfort during your lying leg curls. All pads are 2.2 thick, made of high density EPE foam and textured PU surface, combining firm support with gentle feel. The reinforced foot roller features 20-inch adequate length for sufficient fit and delivers even pressure on both legs. Dual ergonomic rubber handles maintain body stability during workouts.
- Awesome Addition to Home Garage Gym with Reliable Warranty: It fits into your home gym like a workout bench with assembled dimension 43 width x 57 depth (laid down depth 65) x 40 height. We offer Manufacturer Limited Warranty: 2 years on framework (structural steel & welds) and 1 year on other parts. Assembly instructions and wrenches are included. It is surely a cost-effective investment of your fitness equipment. Please note it comes in two packages and may arrive separately.
Description
BEYOND STANDARD RESISTANCE Experience a true 1:1 power ratio that mirrors the weight on your plates. Get the full intensity of every pound without the mechanical loss found in lesser designs. Engineered with premium thickened padding to provide maximum support. Stay focused on your gains with a surface that absorbs pressure and maintains its shape through heavy sets. The V4 features an innovative 3-segment support system designed for lying leg curls. Achieve perfect body alignment and eliminate lower back strain for a more isolated, effective burn. TAILORED TO YOUR PHYSIQUE Switch between exercises in seconds with our rapid-adjustment system. Multiple precision angles allow you to customize the range of motion to fit your height and training style perfectly. Dual hard chrome weight horns feature a symmetrical layout to maximize loading capacity, enabling more plates with rock-solid stability and even weight distribution during every rep. Experience fluid motion with our high-performance aluminum pulleys. Precision-machined for durability and low friction, it delivers whisper-quiet, smooth transitions that mimic commercial gym machine. Quickly transition from sitting to lying with a one-click button. This rapid system lets you switch modes effortlessly, maintaining heart rate and workout momentum without manual setups. Foot roller features multiple angle adjustments for quick customization. Designed to suit different heights and leg lengths, ensuring a comfortable, effective fit the whole family can share. Elevate comfort with 2.2" thick padding. High-density EPE foam with textured PU surface offers firm support and gentle touch, ensuring durability and joint protection during heavy use.
Brand: LIONSCOOL
Color: Black
Material: Carbon Steel
Product Dimensions: 57"D x 43"W x 40"H
Tension Level: 400LBS
Brand Name: LIONSCOOL
Manufacturer Part Number: V4-02
Manufacturer: LIONSCOOL
Included Components: Leg Extension / Prone Leg Curl Machine
Warranty Description: Manufacturer Limited Warranty
Unit Count: 1.0 Count
Tension Supported: 400LBS
Handle Type: Rubber
Strap Type: Cable/Pulley straps
Item Dimensions D x W x H: 57"D x 43"W x 40"H
Color: Black
Material Type: Carbon Steel
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jul 25 – Jul 29
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
This is an amazing product for the price. The machine offers consistent weight throughout the movement. I'm shocked at how smooth the range of motion is. It's amazing. The leg bar is solid and does not bend at high weight. The function of this machine is commercial grade. This machine will hold a lot of weight and will not wobble. The product is made with high grad steal and components in the curial areas. For $400, you will not be disappointed in this machine. I would put this machine up against any commercial grade machine in terms of function on the market. Assembly was easy. Downside. The only real downside. The knobs adjusting the seat movement are plastic. Could be an issue long term.
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Reviewed in the United States on November 20, 2025 by Amazon Customer
First, let me say that I've been weight training for 58 years both at home and in gyms. I've used every kind of home gym and commercial gym leg extension and ham string machine. From a training perspective, the V4 is as good as any commercial gym machine. I'm 5'9.5" 178 lbs. My wife is 5'5" nominal weight but lean. The torque curve is good. It felt constant throughout the range of motion for both the quads and the hamstrings. (My preference is for it to get slightly easier at maximum contraction to reduce creeping reduced ROM, but that's personal) For my size, I can usually use most of the stacks at commercial gyms for leg extension. Unless you are in the top .1% of strength, there is little risk of maxing out this machine. The machine is solid enough that it is not necessary to perfectly balance the plates. I wouldn't load 100lb on one side and let the other be empty, but from what I can see, a 45lb difference between sides is irrelevant. That's a time saver when my wife and I are alternating the use of the machine. I just have to get the total weights right. I recommend getting at least one 2.5 lb 2" plate to dial in the resistance. I have fractional plates down to 4 oz. As can be seen in some youtubes, there is some flex in the structure under heavy load. While working out, you don't notice it. I loosened the bolts and pre stressed the frame in th eopposite direction. It seems to have fixed the problem. Value is good. I'd buy it again. I wish I had this when I started my home gym build. What is really noticeable is the speed that I can work in with my wife. Changes are fast. Unlike the pendulum machines, I can do hams w/o her helping me adjust the restraint to hold down your leg. Assembly was straight forward IMHO. One action per instruction page. The seat assembly took a second try . Positioning of the angle of the pieces makes a difference. Took me maybe 60-90 minutes of uninterrupted time. I didn't clock it; just an estimate. It is in the top tier for priority buys for a home gym. My cable machine is first. This would be second, My pec dec would be third. I've made several purchases of home gym devices that I've gotten rid of. this one will stay.
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Reviewed in the United States on April 10, 2026 by Michael R. Zboray
Leg Curl Not for short people. Quality is good though. Leg extension works well. Heavy duty. Pads are quality. Hip Thrust is good. Split squats good. Wished there was an adjustment for pads in the leg curl position. The space between back pad and bottom pad is probably 6-8 inches. Is a bit uncomfortable when you lay down. Even more so when you’re short and your chest(boobs) are in that spot. Summary: - leg curls not good for short person - leg extension really good! Works great! - hip thrust works good - heavy duty frame - pads good quality - Takes some time to put together but wasn’t hard just lots of pieces - If you are taller than 5’2” it will probably work well for all 3 exercises. I -
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Reviewed in the United States on May 22, 2026 by Cynthia Bradley
Amazing machine. Easy to assemble. Smooth. Great addition to any home gym.
Reviewed in the United States on April 7, 2026 by Joshua banks
Received this quicker than expected. Reached out to the company, a small piece was missing, probably during transit a hole in the box and a bushing must have rolled out when the zip tie holding it in failed. I reached out and they promptly sent out a replacement part. I'm also extremely satisfied with this piece of equipment, it's solid, sturdy, and easy to put together. Definitely keep this at the top of your list if you're deciding on one. I wish it had the option to seated leg curls, but the position of the weight throughout the rep. creates the consistency that I favor over the seated position. It was something I weighed out, and due to other pieces I've used in the past, this option is what made me decide to go with this one.
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Reviewed in the United States on February 9, 2026 by Ryan Marshall
After using this machine for about 2 months I really enjoy it. It does what it’s supposed to do and it does it very well. It took me about 1.5-2 hrs to put together and that’s because I messed up on a step. The hardware package was damage and I found myself going back to the page that has a ruler to measure length. The more you assemble the less hardwire you will have to measure, but still was a pain. I will not take a star away because my review is purely based on functionality not on delivery. I’m 5’5 and 280 lbs and I fit really good on it. One of the reasons I chose this machine was because of the bigger seat support compared to others. My wife is 4’10 and the rollers are at her ankles. I put an extra back cushion to help minimize ankle strain but she’s not loading up the thing either. All in all,a solid 10/10 Note: in the video I reviewing it sore 😅 and it’s very stable as you’ll notice when I get off!
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Reviewed in the United States on December 8, 2025 Reviewed in the United States on December 8, 2025 by adrian gonzalez
This is easily one of the worst equipment assembly experiences I've ever had. From the moment I opened the box, the problems started. The instructions were vague, parts didn't line up properly, and the wheel assembly was an absolute disaster. Getting the rod through the wheel mechanism took far longer than it should have because the holes were difficult to access and nothing seemed to fit together the way the instructions suggested. What should have been a straightforward build turned into hours of frustration, disassembly, and guesswork. The padding was another major issue. It was difficult to install correctly, and some of the components felt cheaply made from the start. Unfortunately, those concerns turned out to be justified. Shortly after assembly, the padding permanently broke and became unusable. For a machine that's supposed to support repeated exercise, having structural components fail almost immediately is completely unacceptable. Even worse, the problems didn't stop once the machine was assembled. The wheel repeatedly fell off during use despite being installed according to the instructions and checked multiple times. Having a major moving component detach itself over and over again is not only frustrating but also raises serious concerns about the product's design and safety. At this point, I have very little confidence in the quality control behind this machine. Between the terrible assembly process, the wheel constantly falling off, and the padding breaking permanently, this product feels unfinished and poorly engineered. Exercise equipment should be durable, reliable, and safe. This machine failed on all three counts. I would strongly recommend looking elsewhere and spending your money on a product from a manufacturer with better quality control and better engineering.
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Reviewed in the United States on June 6, 2026 by Noah
I replaced a pendulum style leg combo with this. Very good workout, the constant tension is great. The leg pad can be set back far enough to get that deep stretch on the femoral head. The cylindrical support strut may come into contact with your heel. I might get a metal drill bit and movie it higher. Replacing it with a U shaped strut would help. I would also prefer the hamstring curl handles to be higher, which is probably a diy fix. The only drawback is, that the flywheel is circular. So you get 100% resistance at the bottom, which is great, but that resistance curve doesn't adjust to get heavier at the top where you are stronger. Hopefully they can upgrade that circular flywheel with a "nautilus" shaped one, that mimics your natural strength curve.
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Reviewed in the United States on October 8, 2025 by Blond