Toy buying guide
Slackers Ninjaline Intro Kit
A substantial backyard gift for kids who would rather climb, swing, and invent challenges.
Check price at Amazon for Slackers Ninjaline Intro Kit (opens in a new tab) ↗This page contains affiliate links. We may earn a commission if you purchase through these links, at no additional cost to you. How affiliate links work.
Before you buy
- Listed age guidance
- Amazon listing: ages 5+
- In the box
- Line with 14 pockets, two fists, two bars, two gym rings, traverse ring, grip clips, and storage bag; consult the edition's inventory.
- Getting started
- No batteries required. Assembly required
Budget bands are estimates. Confirm the current price, exact edition, seller, and delivery date at checkout. Our last listing check was ; this is not a live stock update.
Read the verdict and alternativesSource-checked review
A climbing gift that begins with the receiving adult
Only shortlist this after the household agrees to the installation and upkeep. The meaningful purchase is a supervised climbing activity plus a suitable site, not just a box of obstacles.
- Best fit
- A climbing enthusiast has a willing adult and a confirmed suitable site.
- Consider another option if
- The recipient's household has not agreed to install and maintain it.
Consider these alternatives
Stomp Rocket Dueling Rocket Launcher →
For outdoor play when the household wants a launch activity without installing hanging equipment.
Razor A Kick Scooter — Red →
For a child who prefers riding and has a suitable riding area instead of a climbing site.
A closer look at the trade-offs
Portable does not mean carefree
Moving the kit means assessing another site. The receiving adult's available time is as important as the child's interest in climbing.
Setup, storage & first play
- An adult must follow the complete installation manual, including anchors, clearance, protective surfacing, inspection, and supervision.
- The manual calls for taking the equipment down during extended disuse and indoor storage at season's end.
Try this first
Have the responsible adult complete the supplied setup and inspection procedure before introducing the activity under supervision.
An editorial activity suggestion, not a report from a product test.
Based on published product information, not hands-on testing. How we review
Sources, facts & edition details
The edition we researched
The brand page and linked Amazon listing identify 36-foot kit SLA.788M, UPC 859215007928. Earlier kits have different obstacle assortments.
Manufacturer age guidance: 5 years and older; maker's maximum user weight is 250 lb
Verified product facts
What the evidence can tell you
Published sources checked . Buying judgments and suggested activities are our editorial assessment.
- We have not installed, load-tested, or assessed a site. This review does not certify installation safety.
- No setup time, long-term weathering result, or observed child performance is recorded.
Edition identifier
SLA.788M. The manufacturer identifies the 36-foot Intro Kit as SLA.788M. The current linked retailer page separately records that model and UPC 859215007928.
Source: Bolder Play / Slackers ↗ (opens in a new tab), observed . This identifies a recorded edition; it does not confirm today’s seller, stock, or price.
Additional references
Catalog reviewed . Check the seller’s exact edition and included items.
You may also like
Gift ages 2–5
Little Tikes Easy Score Basketball Set — Pink
A toddler-sized hoop with a wide rim and room to raise the challenge.
Gift ages 2–5
Little Tikes T-Ball Set — 5 Balls
A forgiving first batting setup that lets children hit a stationary ball.
Gift ages 5–12
Razor A Kick Scooter — Red
A compact two-wheel scooter for children already comfortable balancing.
Gift ages 3–8
My First Flybar Foam Pogo Jumper
A low-to-the-ground hopping toy for short bursts of movement.