---
product_id: 47218823
title: "Slackers 56’ Ninjaline Original Intro Kit - Best Outdoor Ninja Warrior Training Equipment for Kids - Build Your Very Own Backyard Ninja Obstacle Course - Rated Ages 5+"
brand: "slackers"
price: "€ 337.84"
currency: EUR
in_stock: true
reviews_count: 12
url: https://www.desertcart.nl/products/47218823-slackers-56-ninjaline-original-intro-kit-best-outdoor-ninja-warrior
store_origin: NL
region: Netherlands
---

# 9 versatile hanging obstacles 6000lb tensile strength 56’ mainline length Slackers 56’ Ninjaline Original Intro Kit - Best Outdoor Ninja Warrior Training Equipment for Kids - Build Your Very Own Backyard Ninja Obstacle Course - Rated Ages 5+

**Brand:** slackers
**Price:** € 337.84
**Availability:** ✅ In Stock

## Summary

> 🥷 Elevate backyard play to ninja status—because ordinary swings just won’t cut it!

## Quick Answers

- **What is this?** Slackers 56’ Ninjaline Original Intro Kit - Best Outdoor Ninja Warrior Training Equipment for Kids - Build Your Very Own Backyard Ninja Obstacle Course - Rated Ages 5+ by slackers
- **How much does it cost?** € 337.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/47218823-slackers-56-ninjaline-original-intro-kit-best-outdoor-ninja-warrior)

## Best For

- slackers enthusiasts

## Why This Product

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

## Key Features

- • **Portable & Easy Setup:** Quick install and takedown lets you bring the ninja warrior experience anywhere—from backyard to beach.
- • **Customizable Challenge:** Rearrange 9 unique obstacles to create endless backyard ninja courses that grow with your skills.
- • **Train Like a Pro Ninja:** Master agility and balance with 56 feet of professional-grade slackline webbing built to last.
- • **Perfect for Growing Ninjas:** Adjust obstacle spacing and height to keep kids aged 5+ challenged and engaged as they level up.
- • **Built for Safety & Durability:** 6,000lb steel clips and UV-resistant nylon ensure secure, weatherproof fun for years to come.

## Overview

The Slackers 56’ Ninjaline Original Intro Kit is a premium outdoor ninja warrior training set designed for kids aged 5 and up. Featuring a 56-foot, 6000lb tensile strength slackline with 9 interchangeable hanging obstacles, it offers customizable, skill-building challenges. Engineered with heavy-duty steel clips and UV-resistant materials, it ensures safety and durability for backyard, park, or travel use. Lightweight and easy to install, it supports up to 250 pounds, making it perfect for growing ninjas to train balance, agility, and strength.

## Description

desertcart.com: Slackers 56’ Ninjaline Original Intro Kit - Best Outdoor Ninja Warrior Training Equipment for Kids - Build Your Very Own Backyard Ninja Obstacle Course - Rated Ages 5+ : Toys & Games

Review: WOW! This is so great, take anywhere - Once you have all swinging pieces attached it is an easy set up. Works better with 2 people setting up though. The great thing is that you can put up and take down easily, swings stay attached. So you can take it anywhere, beach, camping, kids party, park, etc….
Review: Perfect for 6 year old ninja in training - Very easy to install. My husband was able to set up by himself but definitely would be easier with two people. Easier than I thought it would be to take slack out. The individual loops make adding obstacles easy and insure they stay spaced apart well. We hung it just above my 6 year olds reach so he can practice anytime he wants. After he has had it a bit longer I think we will hang it a bit higher to make him work a bit harder to use it. It is holding up well to Florida wet weather.

## Features

- TRAIN LIKE A TRUE NINJA with the Slackers NinjaLine Intro Kit - now with 9 Hanging Obstacles and an all-new design.
- INCREASE THE DISTANCE BETWEEN OBSTACLES as your skills improve with our versatile Ninjaline that also includes obstacles that vary in skill level
- CREATE ENDLESS PATTERNS FOR ADDED CHALLENGE by changing the obstacle order, and easily take your training anywhere with the convenient installation and take-down.
- ENJOY A 50' MAINLINE AND 6' RATCHET STRAP featuring 56' x 2” 6,000lb professional slackline webbing that can also be used as a Slackline to help build your balance and agility.
- ENSURE TOP SAFETY STANDARDS with 6,000lb steel hanging delta safety clips and UV resistant nylon rope with safety buckle attachment included with all obstacles.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074GNG3ML |
| Best Sellers Rank | #1,039,624 in Toys & Games ( See Top 100 in Toys & Games ) #1,593 in Play & Swing Sets |
| Brand | Slackers |
| Color | red |
| Customer Reviews | 4.3 4.3 out of 5 stars (130) |
| Fastener Material | Stainless Steel |
| Fastener Type | Buckle |
| Is Discontinued By Manufacturer | No |
| Item Weight | 12 pounds |
| Item model number | SLA.817 |
| Load Capacity | 250 Pounds |
| Manufacturer | b4Adventure |
| Manufacturer recommended age | 6 - 20 years |
| Material | Nylon |
| Number of Pieces | 2, 3 |
| Product Dimensions | 600"L x 2"W |
| Tensile Strength | 6000 Pounds |
| UPC | 855388005334 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | Passenger Car |

## Product Details

- **Brand:** Slackers
- **Color:** red
- **Load Capacity:** 250 Pounds
- **Material:** Nylon
- **Vehicle Service Type:** Passenger Car

## Images

![Slackers 56’ Ninjaline Original Intro Kit - Best Outdoor Ninja Warrior Training Equipment for Kids - Build Your Very Own Backyard Ninja Obstacle Course - Rated Ages 5+ - Image 1](https://m.media-amazon.com/images/I/816kPPFZ2FL.jpg)
![Slackers 56’ Ninjaline Original Intro Kit - Best Outdoor Ninja Warrior Training Equipment for Kids - Build Your Very Own Backyard Ninja Obstacle Course - Rated Ages 5+ - Image 2](https://m.media-amazon.com/images/I/81rbHeVAW8L.jpg)
![Slackers 56’ Ninjaline Original Intro Kit - Best Outdoor Ninja Warrior Training Equipment for Kids - Build Your Very Own Backyard Ninja Obstacle Course - Rated Ages 5+ - Image 3](https://m.media-amazon.com/images/I/81sVRKK32RL.jpg)
![Slackers 56’ Ninjaline Original Intro Kit - Best Outdoor Ninja Warrior Training Equipment for Kids - Build Your Very Own Backyard Ninja Obstacle Course - Rated Ages 5+ - Image 4](https://m.media-amazon.com/images/I/91g22PS6D-L.jpg)
![Slackers 56’ Ninjaline Original Intro Kit - Best Outdoor Ninja Warrior Training Equipment for Kids - Build Your Very Own Backyard Ninja Obstacle Course - Rated Ages 5+ - Image 5](https://m.media-amazon.com/images/I/91oZ8rDEPLL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ WOW! This is so great, take anywhere
*by M***. on June 13, 2023*

Once you have all swinging pieces attached it is an easy set up. Works better with 2 people setting up though. The great thing is that you can put up and take down easily, swings stay attached. So you can take it anywhere, beach, camping, kids party, park, etc….

### ⭐⭐⭐⭐⭐ Perfect for 6 year old ninja in training
*by G***N on January 8, 2019*

Very easy to install. My husband was able to set up by himself but definitely would be easier with two people. Easier than I thought it would be to take slack out. The individual loops make adding obstacles easy and insure they stay spaced apart well. We hung it just above my 6 year olds reach so he can practice anytime he wants. After he has had it a bit longer I think we will hang it a bit higher to make him work a bit harder to use it. It is holding up well to Florida wet weather.

### ⭐⭐⭐⭐ Good for a specific age group
*by B***H on February 12, 2021*

Our bigger kids enjoy this (12-15). The thing that disappointed me about this ninja line is that it doesn't work very well when you have a wide age range using it at the same time. That's because you have to have it higher for bigger kids because of their height and weight and then little kids can't reach the attachments. We bought a swing for it (not included) thinking that our three year old would then be able to play on it at the same time as the big kids. Unfortunately that didn't work because the swing is too high in the air for him to get on by himself. However, the swing was a huge hit for the older kids! They love bouncing and swinging on it. The other downside is that it's a bit involved to add or move around the attachments. The line has to be taken down or have A LOT of slack in it to add/move attachments. Otherwise we're happy with it and plan to purchase additional attachments.

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-19*