Ninja Warrior Obstacle Course for Kids - 2*56FT Slackline Kit with 8 Obstacles | Upgraded Quick-Install Buckles (No Threading Needed), 900lbs Max Load Backyard Training Gear
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Availability:
In Stock.
Arrives
Wednesday, Oct 21
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Color: Blue Line 8 Obstacles
Features
- NINJA WARRIOR FUN - Whether you're a kid or an adult, the 256 ft Ninja Slack Line is the perfect obstacle course for demanding fun and physical challenge. Build your child's confidence, coordination and strength in this healthy way to keep them entertained, get them really physical, and keep them fit throughout the year.
- DURABLE AND SAFE - High-quality PE material and High-strength anti-rust treated steel components will last for years. Each Ninja Warrior accessory is tested for a 600-pound load capacity. We upgraded the "ONE-PIECE" and coated design buckle and solved the problem of slack line tearing.
- 8 OBSTACLES - The Ninja warrior line hanging obstacle course is quick and easy to set up, a convenient carry bag lets you take it wherever you go. Perfect for all occasions, such as outdoor birthday parties, forest camping, backyards, playground, fitness class and so on.
- GREAT FAMILY ACTIVITY - Easy to install where there are sturdy 2 trees or poles 15 to 45 feet apart. Enjoy endless possibilities from the sequence and distance of moving obstacles to challenge easier or harder ninja warrior courses.
- GREAT FOR ALL AGES AND LEVELS - Whether you're a beginner relaxing for fun, or a professional athlete looking to improve your strength and balance, our Ninja Warrior obstacle course is the perfect backyard challenge for ninjas of all levels.
Description
Ninja Warrior Obstacle course We want your kids to be happy and healthy. Where is your child now? Outdoors, studying or staying indoors on screens. Gentle Booms Sports Ninja warrior obstacle course not only improves upper body strength, balance, and overall fitness, but also provide the feeling you want through your child's friendship and friendship between children. Have Fun While Exercising! Whether you're a kid or an adult, it is the perfect obstacle course for a fun and physical challenge. Build your child's confidence, coordination and strength. Of course! Every obstacle is rigorously safety tested, high-quality PE material and High-strength anti-rust treated steel components will last for years We focus on safety first, combining quality, safety and fun. A convenient carry bag lets you take it wherever you go. Great Gift! 2×56ft Ninja Obstacle 2×65ft Ninja Obstacle Wood Ninja Obstacle 2-in-1 Obstacle Zip Line New Upgraded Buckle Climbing Cargo Net Classic Buckles
Size: Medium, Small
Material: Polyester
Color: Blue Line 8 Obstacles
Brand: Gentle Booms Sports
Vehicle Service Type: Passenger Car, SUV, Van
Brand Name: Gentle Booms Sports
Number of Pieces: 1
Manufacturer: Gentle Booms Sports
Unit Count: 1 Count
Number of Packs: 1
Included Components: BUCKLE
Model Number: GBS-RTTJ-0001-02
Manufacturer Part Number: GBS-RTTJ-0001-02
Compatible with Vehicle Type: Passenger Car, SUV, Van
Fastener Type: Buckle
Material Type: Polyester
Hardware Material: Stainless Steel
Size: Medium, Small
Item Dimensions L x W: 624"L x 24"W
Color: Blue Line 8 Obstacles
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Oct 21
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
Color: Blue Line 8 Obstacles (Wood)
I grabbed this for our basement because cabin fever is real. When it’s warm again, I’ll move it outside. Pros: this thing is great. It’s sturdy and our rig has held bigger adults (ish— it’s a little short being in the basement, but we can still hang on it). The attachments are fun, but without a doubt the hit has been the extra swing I added on. It’s perfect for my 5 year old to work on some basic hangs and strength. Another pro is that you can set it up anywhere. And it’s easy to set up. Super easy. Cons: the length of the strap for small places indoors is a pain to work with. It’s LONG. Well obvious, you say and I agree. But it felt really long to slide the clips down 50’ of strap and wrap it. Just be wary if you’re working with 10’ of space, as I was. For small spaces, another con for me was how long the ratchet end was, as it creates 6’ of unusable space. I just hooked the activity bearing strap and the ratchet end to the same post and wrapped the strap around the second post to make it work. It’s sturdy and works well, just make sure you get the excess strap out of the way. We use it daily. It was definitely a great buy.
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Reviewed in the United States on January 31, 2021 by Rhianna C
Color: Blue Line 8 Obstacles (Wood)
The kids have loved it. And it is absolutely great for them. A few things that would be good to know: - I bought this one over the other because the weight limit was 600lbs. That would give me the ability to play on it with the kids when they ask. I don't quite trust my weight on it (a little less than 200). I can get on it but I don't feel like it would withstand my weight on it for too long. Since this was a gift for my twin 5 year olds it was not a deal breaker but I won't be getting on it. - You can put this up with only one person. It's a little difficult to do on your own so if you can put it up with two people I would do that instead. - Pull as much of the slackline through the ratchet before cranking it. The ratchet can't hold a ton of the line so pull as tight as you can by hand before cranking it. - the felt tree protectors didn't wrap around my tree. The slacklines did but the felt isn't the max length so if that's important to you than you might need to buy more of that. - After an hour of putting this up I realized a piece was broken. I really did not want to have to take it down to re-box it and send it back to amazon to replace so I contacted the seller directly. They responded in about two days but then went above and beyond to replace the thing that had broken.
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Reviewed in the United States on February 26, 2024 by Alisha
Color: Blue Line 8 Obstacles (Wood)
We have a grandson that is seven years old and he is ADHD and he is constantly saying he is bored so we bought this and we put it up for him and he is constantly playing on it. Well worth the money very sturdy very well-made.
Reviewed in the United States on May 20, 2026 by Misty
Color: Blue Line 13 Obstacles
The boys were excited to get this and the installation wasn’t too difficult. We used two trees. However. They lost interest pretty quick and hopefully the Spring will spark the fun again. Very nice quality!
Reviewed in the United States on January 6, 2026 by Jana Walker
Color: Blue Line 13 Obstacles
We bought this ninja warrior obstacle course for our 7 year old daughter and it has been an absolute hit. From the moment it was set up, she was swinging, climbing, and racing through it like she was on her own backyard ninja show. It keeps her active, challenged, and smiling! Great value for money! Setup was easier than expected and everything feels sturdy and secure. We love the size! I love that you can change up the obstacles to keep it exciting as kids grow or when friends come over. It functions perfectly. It makes our yard look adorable too. It has been amazing for burning off energy and building confidence, strength, and coordination in a fun and playful way. This has easily become one of her favorite outdoor activities and it has pulled her away from screens without a single complaint. If you have an active kid who loves to climb, swing, and test their limits, this is such a fun and worthwhile purchase.
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Reviewed in the United States on December 22, 2025 Reviewed in the United States on December 22, 2025 by Tiffany Lynn Sigmon
Color: Blue Line 8 Obstacles
100 recommend. Kiddos use it daily especially after school get their energy out.
Reviewed in the United States on April 28, 2026 by Megan Haywood
Color: Blue Line 13 Obstacles
Update: well we’ve had it nearly a year now, and my daughter was swinging on it with the included swing that came with it, and suddenly the ratchet came apart with a loud pop, and she fell to the ground. She’s only 10 years old, it’s not like a big adult person was on the line. The ratchet is just not made well, and I guess it’s just a piece of junk. So I wanted to give everybody this update. Now, I can’t really recommend purchasing this item because we put it back together after it had snapped apart, and a few seconds later with nobody even touching the line, it blew apart again. Definitely a safety hazard. When the package arrived, I was surprised that the box was smaller than I imagined, but no - it's all in that one box. Before we started any assembly, we did lay everything out in an organized fashion to make sure that everything was there - however, there was no inventory sheet that gave quantities. So, after contemplating for the 100th time as to where to put this thing, I decided on a tree and a gigantic 6" gate post. Mistake #1 - a 6" diameter post is not strong enough to attach to. Although our post had 48" in the ground, and a full 8-feet above ground, after we installed everything, I was worried that the top of the post was going to break off, because it was leaning over due to the strap on it. So we took everything down, and back apart, and started over to a new location between two large trees. Mistake #2 - Once you tighten the strap, you cannot move the buckles to adjust the placement of your obstacles. And, you don't want to be tightening/loosening the top strap too many times, because 1. You're probably on a ladder, and 2. It takes an immense amount of tension to tighten the strap. Things to note: 1. The straps have to be SUPER TIGHT to allow the kids to stand on or hang from them without a lot of sagging. Tightening them is not for the faint of heart. 2. The top strap has to be pretty high, or the kids just pull it down too far, even with it super tight. 3. The bottom strap - we decided to move it between two other trees, and purchase a third strap to use for it's top strap, so that they could use the strap and balance-walk on the bottom one. Because trying to have a bottom strap under the obstacle course was just a pain in the butt and not worth it. Especially with the swings there. My daughter likes to swing on the swing, but the bottom strap was in the way. So moving it was the right answer. Also, keep in mind that you cannot get to the other side of the bottom strap with a lawn-mower. So our new location for it was next to our garden shed, where I have to use the string-trimmer anyhow. 4. You need BIG TREES to attach this to. I would say that at least 12" diameter trees would be the best. I cannot stress enough how tight the straps must be to support all of the weight of the obstacles, plus the kids. Overall Opinion: I bought this to get my daughter outside and away from sitting in front of the TV all day during the summer. She loves it, and has already spent a lot of time on it. We also paired this with an outdoor gymnastics mat (inflatable, 20-feet long) and between the two, she is burning a lot of energy outside in the fresh air! Another thought is that, instead of the fabric strapping between the trees, what may have been a better option, and may still be for us, would be to just use wire cable and a cable-winch or come-along to tension the wire. Everyone has their opinions, but we also have a 90-foot zip-line, so we have a little experience with trying to keep a long line tensioned! Cheers!
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Reviewed in the United States on July 9, 2024 Reviewed in the United States on July 9, 2024 by 72098734
Color: Blue Line 13 Obstacles
Negative: Advertised as holding 600 pounds - box says 440. Advertised as having extra wide 5 foot tree protectors - tree protectors received were not that long. (We did reach out to support and will update if I hear back.) Hard to assemble, unclear directions. Had to watch multiple Youtube tutorials. Needed a ladder and two people. Positive: Despite the issues, this is a great product. We have a lot of tall trees and no branches for a swing but didn’t want to spend thousands on a play set. I love that we can position items where we want them and could even buy more attachments to hang and change things up. This is a super cute and versatile product. My kids are thrilled to have it and I imagine will enjoy this for years to come. You definitely get your moneys worth it and more.
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Reviewed in the United States on June 12, 2026 Reviewed in the United States on June 12, 2026 by Chels B