---
product_id: 587244064
title: "Ninja Warrior Obstacle Course Accessories New Upgraded Buckle for 2” Width Slackline No Tearing Slackline，Quick Buckle – No More Threading，Install in Seconds – Anywhere on the Line"
brand: "gentle booms sports"
price: "S/.329"
currency: PEN
in_stock: true
reviews_count: 8
category: "Gentle Booms Sports"
url: https://www.desertcart.pe/products/587244064-ninja-warrior-obstacle-course-accessories-new-upgraded-buckle-for-2
store_origin: PE
region: Peru
---

# Quick-install curved buckle design Waterproof & rust-resistant coating 1000 lbs high-carbon steel strength Ninja Warrior Obstacle Course Accessories New Upgraded Buckle for 2” Width Slackline No Tearing Slackline，Quick Buckle – No More Threading，Install in Seconds – Anywhere on the Line

**Brand:** gentle booms sports
**Price:** S/.329
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your obstacle game with the buckle that works as hard as you do!

## Quick Answers

- **What is this?** Ninja Warrior Obstacle Course Accessories New Upgraded Buckle for 2” Width Slackline No Tearing Slackline，Quick Buckle – No More Threading，Install in Seconds – Anywhere on the Line by gentle booms sports
- **How much does it cost?** S/.329 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/587244064-ninja-warrior-obstacle-course-accessories-new-upgraded-buckle-for-2)

## Best For

- gentle booms sports enthusiasts

## Why This Product

- Trusted gentle booms sports brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Secure Grip:** Strong carabiner locks accessories firmly, preventing slips and enhancing safety.
- • **Seamless Design:** Smooth edges eliminate slackline wear, extending your gear’s lifespan.
- • **Effortless Setup:** Curved, one-piece buckle installs in seconds—no threading, no hassle.
- • **Unmatched Durability:** Powder-coated, weatherproof steel built to last through every outdoor challenge.
- • **Versatile Compatibility:** Fits any 2” slackline, perfect for upgrading your Ninja Warrior course or backyard fun.

## Overview

The Ninja Warrior Obstacle Course Upgraded Buckle is a premium stainless steel, rust-resistant fastener designed for 2” slacklines. Featuring a one-piece seamless design and quick-install curved buckle, it supports up to 1000 lbs of pull force. Engineered for outdoor durability and safety, it prevents slackline wear and secures accessories firmly, making it the go-to choice for serious slackline enthusiasts and backyard obstacle course builders.

## Description

desertcart.com: Ninja Warrior Obstacle Course Accessories New Upgraded Buckle for 2” Width Slackline No Tearing Slackline，Quick Buckle – No More Threading，Install in Seconds – Anywhere on the Line : Toys & Games

Review: The line must be slack to put these on. They cannot be added after it's tight - I really do love these little hooks. They were very simple and did slide easier than the ones that came with my original set. What I will mention is that you cannot put them on if the line is tight. You must loosen up your ratchet line so that it has some flexibility to it before you'll be able to put these on. So keep that in mind when you're adding them. I'd recommend putting a ton of extra ones on when you first build it so that you can add additional accessories without having to constantly take the strap down. Overall, the quality of these are very nice powder coated and stainless seem to be holding up pretty well. They're extremely durable for a long time. Use outside. And they did fit very securely onto our existing strap. Overall, this is one of the most fun activities my kids have in the yard and doesn't require much attention from me so they can just go out and enjoy it at their own leisure. I love that these keep the accessories from sliding and the locking mechanism on the hooks keeps items from falling off on expectedly, which makes it much safer than some of the other options.
Review: Work well as advertised. Easy install. - These work really well. Easy to put on and take off as long as the strap isn't under tension. They slide easily on the strap until it has a lot of tension then it doesn't move.

## Features

- DURABLE AND SAFE: Coated design for better rust resistance, waterproof and weatherproof
- ONE-PIECE TECHNOLOGY: One-piece seamless connection technology makes it not easy to deform
- EASY TO INSTALL: The curved design makes this buckle easier and faster to install than other buckles
- SMOOTH SURFACE: No sharp corners, so slack thread wear is completely avoided
- STRONG CARABINER: Made of high carbon steel, capable of withstanding up to 1000 lbs of pull

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CJBF43XV |
| Best Sellers Rank | #71,503 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #5 in Slacklines |
| Brand | Gentle Booms Sports |
| Brand Name | Gentle Booms Sports |
| Color | New Style |
| Compatible with Vehicle Type | Passenger Car, Truck, Van |
| Customer Reviews | 4.5 out of 5 stars 68 Reviews |
| Fastener Material | Stainless Steel |
| Fastener Type | Buckle |
| Hardware Material | Stainless Steel |
| Included Components | Buckle |
| Item Type Name | ninja slackline buckle |
| Manufacturer | Gentle Booms Sports |
| Manufacturer Part Number | GBS-PJ-0021 |
| Manufacturer Warranty Description | 1 year manufacturer |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Model Number | GBS-PJ-0021 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Size | PJ02 |
| Unit Count | 1 Count |
| Vehicle Service Type | Passenger Car, Truck, Van |

## Product Details

- **Brand:** Gentle Booms Sports
- **Color:** New Style
- **Material:** Stainless Steel
- **Size:** PJ02
- **Vehicle Service Type:** Passenger Car, Truck, Van

## Images

![Ninja Warrior Obstacle Course Accessories New Upgraded Buckle for 2” Width Slackline No Tearing Slackline，Quick Buckle – No More Threading，Install in Seconds – Anywhere on the Line - Image 1](https://m.media-amazon.com/images/I/71z5BDqmTxL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The line must be slack to put these on. They cannot be added after it's tight
*by T***Y on July 14, 2026*

I really do love these little hooks. They were very simple and did slide easier than the ones that came with my original set. What I will mention is that you cannot put them on if the line is tight. You must loosen up your ratchet line so that it has some flexibility to it before you'll be able to put these on. So keep that in mind when you're adding them. I'd recommend putting a ton of extra ones on when you first build it so that you can add additional accessories without having to constantly take the strap down. Overall, the quality of these are very nice powder coated and stainless seem to be holding up pretty well. They're extremely durable for a long time. Use outside. And they did fit very securely onto our existing strap. Overall, this is one of the most fun activities my kids have in the yard and doesn't require much attention from me so they can just go out and enjoy it at their own leisure. I love that these keep the accessories from sliding and the locking mechanism on the hooks keeps items from falling off on expectedly, which makes it much safer than some of the other options.

### ⭐⭐⭐⭐⭐ Work well as advertised. Easy install.
*by M***S on January 2, 2026*

These work really well. Easy to put on and take off as long as the strap isn't under tension. They slide easily on the strap until it has a lot of tension then it doesn't move.

### ⭐⭐⭐⭐⭐ Kids Love It
*by T***B on January 25, 2026*

Bought this as an add on to another product and it turned out to be a great product by itself. Easy to assemble and very solid for small children (my 8 year old grandchild is the perfect size and weight). Definitely gets the children outside to play!

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**Shop now:** [https://www.desertcart.pe/products/587244064-ninja-warrior-obstacle-course-accessories-new-upgraded-buckle-for-2](https://www.desertcart.pe/products/587244064-ninja-warrior-obstacle-course-accessories-new-upgraded-buckle-for-2)

---

*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-09-23*