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Just.smile Zipline Kit Review: Backyard flying and balance training

Zip ine Kit for Kids Outdoor,Stainless steellackline Pulley Slider with Swing seat Zip line,Kids Zipline kit for Backyard with 60ft Ninja Slackline Slackline Zipline
4.7
[Smooth Double Bearings]  Stainless steel double bearings deliver smoother sliding and enhanced ride experience.
[Slackline + Zipline Combo]  Combines slackline balance training with thrilling zipline flying sensation.
[High Weight Capacity]  Supports up to 400 pounds, suitable for both kids and adults.
[Simple Tree Installation]  Installs between trees 30–53 ft; recommended starting end higher for smooth slope.
[Complete Accessory Kit]  Includes all necessary accessories and responsive customer support for satisfaction.
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Outdoor play equipment that turns two trees into a backyard zipline and slackline, promising smoother sliding and useful balance practice, Just.smile Zipline Kit. Families can enjoy the thrill of flying and a simple way to practise balance, suitable for children and adults up to 400 pounds. Will the kit stand up to regular family use and install easily without specialist tools?

⚡ At a Glance
  • Ride Smoothness: Stainless steel double bearings produce a smoother, more consistent glide
  • Best for: Families and outdoor enthusiasts seeking combined zipline and slackline fun
  • Not ideal for: Locations without two sturdy anchor points spaced 30 to 53 feet apart

Combines a slackline and zipline using a stainless steel double-bearing pulley for smoother sliding. Rated to support up to 400 pounds and designed for installation between two anchor points spaced 30 to 53 feet apart.


Smooth sliding and steadier momentum, thanks to stainless steel double bearings

Stainless steel double bearings replace traditional single-bearing pulleys, distributing load across two bearings to reduce wobble and maintain a consistent roll. The pulley assembly works with a downward slope so gravity carries riders along a controlled line.

Smoother launches and fewer jerks at speed make rides feel safer and more enjoyable for both children and adults.

Two activities in one, with combined slackline and zipline configuration

Configuration pairs a pulley slider on a taut line with slackline components, so the setup can serve as a zipline or a slackline for balance work. The system is rated to support a maximum weight of 400 pounds, allowing use by adults as well as children.

One installation offers flying thrills and balance training, ideal for families who want varied outdoor play without extra equipment.

Quick backyard setup, thanks to simple configuration and included accessories

Installation requires two anchor points spaced between 30 and 53 feet and a starting end set higher than the finish to create a slope for gravity-powered sliding. All accessories needed for assembly are included to simplify setup at backyards, parks, or campsites.

Fast to put up without specialist tools, so playtime starts sooner and the kit can move with the family on trips.

✨ The 4 Key Reasons for Just.smile Zipline Kit
  1. Swing seat included - Comfortable seated rides for younger children and beginners
  2. All accessories included - Everything needed to set up without extra purchases
  3. Simple installation - Fits trees 30 to 53 feet apart, clear setup guidance
  4. Family-ready capacity - Supports heavier riders so adults can join play
📋 Technical Details at a Glance
  • Category: Zipline and slackline kit
  • Brand: Just.smile
  • Material: Stainless steel pulley components
  • Pulley type: Double-bearing stainless steel pulley
  • Seat: Swing seat included
❓ Frequently Asked Questions

Q: What is the maximum weight the kit supports?

A: Supports up to 400 pounds, suitable for heavier children and many adults.

Q: How far apart do the anchor points need to be?

A: Requires two anchor points spaced between 30 and 53 feet to achieve the correct line tension and slope.

Q: Is installation difficult and are parts included?

A: Configuration is described as simple and the kit includes the accessories needed for assembly, with a recommended starting end higher than the finish for gravity-powered sliding.

🏆 Our Verdict

Best suited to families and outdoor enthusiasts who want both flying fun and balance practice from one backyard setup. The stainless steel double-bearing pulley and combined slackline-zipline layout deliver smoother rides and versatile activity. Durable materials and included accessories make it a practical long-term addition to family outdoor gear.