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FREE 30-day refund/replacement
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Availability:
Only 5 left in stock, order soon!
Arrives
Monday, Nov 2
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At a glance
- Condition
- New
- Model
- Basic 80ft
- Color
- Blue
- Material
- Alloy Steel, Nylon
- Size
- 80 feet
- Vehicle Service Type
- Passenger Car
- Load Capacity
- 250 lb
Features 5
- Ninja line kids Monkey Bars that hang perpendicular to the course! - Unlike any other set, our patent pending double line design warriors ninja training course allows for the monkey bars to hang perpendicular to the ninja course, as they should.
- 50% less sag or recoil! - Because the user is supported by two ninja line slackline instead of one, there is greater support, which prevents the double slackline obstacle course from bouncing up and twisting over the line when the user dismounts.
- Adjustable -Our easy customize obstacle / outdoor ninja obstacle course for kids has unique buckles that allow you to customize the obstacle positions in any order and any distance apart that you'd like. The no fix obstacle / no fix distance set with the 80 foot line is good for trees up to 35 feet apart, and the 110 foot line is good for trees up to 50 feet apart.
- Safe and high quality - We believe in safety before all else. Our user friendly design ninja backyard obstacle course equipment is factory break tested to sustain very high forces and is made from high quality industrial strength materials. Ninja warrior course with monkey bars for kids is very safe for your little ninjas.
- The ninjaline backyard obstacle course kit set includes One eighty foot slack line with heavy duty ratchet and installation accessories (good for trees up to 35 feet apart) Three monkey bar obstacles, Two hanging ring obstacles, Two monkey knot obstacles, Two tree protectors, One storage bag, for easy storage of the slackline line. Quick setup and quick takedown.
Specs 20
| Size | 80 feet |
|---|---|
| Material | Alloy Steel, Nylon |
| Color | Blue |
| Brand | Lily's Things |
| Vehicle Service Type | Passenger Car |
| Brand Name | Lily's Things |
| Number of Pieces | 30 |
| Manufacturer | Lillian Imports |
| Unit Count | 1 Count |
| UPC | 689354974177 |
| Number of Packs | 1 |
| Item Type Name | Double Ninja Slackline Obstacle Course for Kids |
| Model Number | Basic 80ft |
| Manufacturer Part Number | 1.1 |
| Compatible with Vehicle Type | Passenger Car |
| Load Capacity | 250 pounds |
| Fastener Type | Hook & Loop |
| Tensile Strength | 1000 pounds |
| Material Type | Alloy Steel, Nylon |
| Hardware Material | Nylon |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Nov 2
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
Best gift for my kids ever!!
Color: Blue
Size: 80 feet
So, our kids love anything Ninja Warrior related, and they’ve used other brands of these Ninja Lines before. We bought this one specifically because of the double line design which we haven’t seen anywhere else, and it was definitely worth it. The double line allows for the monkey bars to hang perpendicular to the course, which is a big deal. The kids can trapeze and swing from one bar to another just like on normal monkey bars on a gym set (you can’t do that on any of the other types of these ninja lines, the monkey bars are all sort of sideways). The double line also prevents less “bounce”, so the obstacles don’t go flying and twist over the line when the kids let go. It was definitely a bit of a challenge to set up, but the instructions were very clear (I would recommend two people for the set-up). Overall, a really great quality product for the price, and has already provided hours of outdoor fun for our two boys. Five stars!
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Reviewed in the United States on February 1, 2020 by Chris
Good value - fun for the kids.
Color: Blue
Size: 80 feet
Easy to set up. The kids love it. Seems sturdy enough for its purpose and price point.
Reviewed in the United States on December 27, 2025 by Walter in Texas
Fun product. Not as easy to assemble as you’d think.
Color: Blue
Size: 80 feet
Good product. The kids have fun on it and quickly figured out how to climb from one tree to the other by sliding across the parallel webbing straps. Very fun and good value overall. The only disappointment was that the individual sliders for hanging different handles on are pretty much impossible to move once the webbing straps are tightened. This is rather annoying since you kind of need to tighten the straps first in order to know where they need to be in order to be spaced approximately correctly. This also means that in order to move or adjust anything you pretty much have to take the whole thing down first.
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Reviewed in the United States on June 21, 2021 by Jesse B.
Creative, Fun and Totally Worth it!!
Color: Blue
Size: 80 feet
This Ninja course is a fantastic setup—it fits perfectly between our backyard trees and has such a creative mix of loops, knots, and monkey bar-style elements that keep kids engaged and active. I had my handyman crew install it, along with other swings and I’d definitely recommend getting professional help unless you're confident with these kinds of installations. It needs to be wrapped, cranked, and secured at the right height, and need to ensure its strong well done from safety perspective. Once set up though, it’s incredibly sturdy, fun, and visually awesome. Highly recommend!
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Reviewed in the United States on May 17, 2025 by Isha
Great alternative to swing set
Color: Blue
Size: 80 feet
The double slack line is perfect for the backyard and a great alternative to a swing set. I like that you can change out the obstacles and customize as kids develop and grow. Having the monkey bars go perpendicular to the course was a huge plus as my kids are still learning (3 and 5). I purchased the extra buckles and put on during installation so I don't have to remove the straps to add more obstacles when the time comes. My only complaint is when adjusting the velcro tree straps, the buckle isn't very sturdy and we had one snap. The buckle isn't weight bearing, but when setting up something for the kids to hang on we wanted to tighten everything as much as possible. It came with three straps so replacing the broken one was easy, but it was a tad disconcerting at the beginning of install. Otherwise, great product. Would highly recommend.
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Reviewed in the United States on September 7, 2020 by Zerr Family
Buckle attachment tips / order extra buckles
Color: Blue
Size: 80 feet
In my opinion, the set up for this device requires the presence of 0 children and 2 adults. The adults should be patient, thoughtful minded, have good communication skills, and have 1/2-1 hour to spare. Once we corralled the kids, inside I attempted to put up the line with my slightly inebriated neighbor. He is more engineer minded than me, but he doesn't like to read directions. By the time we got the line up, I thought I would never want to take it down again. Now we've got the awesome device set up in our yard, but the set only comes with three bars and there is room for 10-12 bars. My kids totally love it! Tip: The buckles slide very easily when the slack line is relaxed, but they are nearly impossible to move once the line is tight. Once the line is tightened the buckles seemed to move a few inches from our planned spot. Now I'd love to think I could be patient and make sure the buckles are perfectly aligned, but that is a bit unrealistic for me. Plus the bars are functional and fun if they are a bit crooked. So after a little thinking, my next plan will be to make sure there are about 40 buckles on the line the next time I put it up. I will buy a extra monkey bars from time to time, and I will probably come up with my own obstacles. I assume that with 40 buckles up that we will never ever have to take it down again.
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Reviewed in the United States on January 24, 2021 by Jonathan McWilliams
Monkey bars are slippery and impossible to grab onto.
Color: Blue
Size: 80 feet
This was easy enough to set up with 2 people. Make sure to follow the directions, it works best if you don’t skip ahead😂 Unfortunately the monkey bars seem very cheaply made. They are plastic and impossible to grab onto. Otherwise the double strap option is ideal and it seems very sturdy.
Reviewed in the United States on August 4, 2026 by Brandy Butchek
Love the double line design
Color: Blue
Size: 80 feet
My children (ages 10, 8 and 5) love their new ninja line! They always wanted monkey bars but our swing set didn't have them. This ninja line is perfect for them! They love that they are able to have the monkey bars horizontal on here so that they are like real monkey bars. The kids are also enjoying the hanging rings and are working on getting better at the monkey knot obstacles...those are more of a challenge! We are hoping that we can get extra buckles soon so that we can add additional accessories to the line too. It's the perfect addition to our backyard right now to keep the kids entertained!
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Reviewed in the United States on April 5, 2020 by Jrea