A slackline obstacle course kit is a long strap you tension between two trees or posts, with hanging pieces such as rings, monkey bars and nets clipped along it. The kit does the work of a small backyard playground in a bag, so line length, the number of hanging obstacles and the tree straps matter most.
The six kits below run from a 36 foot starter line to double-line sets over 50 feet. Contents come from each Amazon.com listing. We have not used these kits ourselves. Strength and warranty statements are the makers’ own, and several listings give different counts in the title and the text, which we flag.
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What to Look For
| Feature | Why it matters |
|---|---|
| Line length | Decides how far apart your anchors can be |
| Obstacle count | Compare the real list, not the title number |
| Tree straps | Kits list tree huggers or tree protectors |
| Ratchet | The tensioner is how the line is set up |
| Warranty | Terms range from 1 to 5 years in the listings |
Specs at a Glance
| Kit | Line | Obstacles | Notes |
|---|---|---|---|
| Slackers Deluxe | 56 ft in title; 36 ft plus 6 ft ratchet line in text | 9 hanging obstacles | Travel bag; 4 tree huggerz |
| Slackers Intro | 36 ft | 7 hanging attachments | Ratchet and strap |
| SereneLife | 50 ft | 8 in text; 18 in title | Polyester; needs two trees |
| Trailblaze | Two 55 ft lines | 10 obstacles | 2 inch wide polyester webbing; 5 year warranty |
| AOBOTE | Two 56 ft lines | 12 in title; 11 in details | Saucer swing; 1 year warranty |
| Trelines | 36 ft | 8 accessories | Ratchet cover; 8 carabiners and clips |
The 6 Best Backyard Slackline Obstacle Course Kits
1. Slackers Deluxe Ninjaline Kit
A kit with nine hanging obstacles. The contents list a 36 foot line with a 6 foot ratchet line, a traverse ring, two steel gym rings, two monkey fist knots, two monkey bar holds, four tree huggers, a rickety bridge, a tri-ring vine, a net with anchor line, a ninja wheel, four grip clips and a travel bag. The title says 56 feet, which does not match the 36 plus 6 foot list.
Suits: a yard that wants variety. Strengths: a detailed contents list. Weaknesses: a length mismatch. Skip it if you need a clear line length.
View Slackers Deluxe Ninjaline Kit on Amazon
2. Slackers Ninjaline 36 Foot Intro Kit
A 36 foot kit with seven hanging attachments, a ratchet and a strap. The maker says you hang it between two trees or wooden posts and attach the obstacles.
Suits: a first kit. Strengths: a simple set. Weaknesses: fewer obstacles. Skip it if you want a long line.
View Slackers Ninjaline 36 Foot Intro Kit on Amazon
3. SereneLife 50 Foot Slackline Obstacle Course
A 50 foot polyester line, listed at about 590.6 inches. The bullet text names eight obstacles: a ninja wheel, gym rings, climbing rope, monkey bars, a monkey fist, a five-step ladder, triangle grips and a cargo net. The title says 18 attachments, which does not match the text.
Suits: a long single line. Strengths: a long line and a ladder. Weaknesses: an unclear obstacle count. Skip it if you need exact counts.
View SereneLife 50 Foot Slackline Obstacle Course on Amazon
4. Trailblaze 2×55 Foot Slackline Obstacle Course
A double-line kit with two 55 foot lines and ten obstacles: two monkey bars, two gymnastic rings, a monkey fist, a seat swing, a ninja wheel, a rope ladder and a 12 by 12 inch climbing net. It also lists two tree protectors, 17 buckle straps and a carry bag. The webbing is 2 inches wide and 4 mm thick polyester, and the maker offers a 5 year warranty.
Suits: two lines side by side. Strengths: a long warranty and a seat swing. Weaknesses: it needs space for two lines. Skip it if you have a narrow yard.
View Trailblaze 2×55 Foot Slackline Obstacle Course on Amazon
5. AOBOTE 2×56 Foot Slackline Obstacle Course
A double-line polyester kit with a climbing net, a climbing ladder and a saucer swing with a rotating wheel. The title says 12 accessories while the details say 11 accessories plus 17 hooks. The maker lists a 1 year warranty.
Suits: a swing-focused course. Strengths: a saucer swing and two lines. Weaknesses: a count mismatch. Skip it if you want a long warranty.
View AOBOTE 2×56 Foot Slackline Obstacle Course on Amazon
6. Trelines Ninja Adventure Line 36 Foot Kit
A 36 foot line with eight accessories: two monkey bars, two tree holds, two monkey fists and two gym rings. It also lists a heavy-duty ratchet with cover, eight carabiners and line clips, and a bag. The manufacturer is listed as Hape.
Suits: a compact course. Strengths: a clear contents list. Weaknesses: a short line. Skip it if you want a ladder or net.
View Trelines Ninja Adventure Line 36 Foot Kit on Amazon
Specs to Check Before Ordering
- The distance between your two anchor points.
- The real contents list rather than the title count.
- Whether tree straps are included.
- The maker’s installation instructions.
- The warranty terms.
Mistakes to Avoid
- Trusting the obstacle count in the title.
- Ordering a double line for a narrow space.
- Skipping the maker’s setup instructions.
- Overlooking warranty differences.
Slackline Obstacle Course FAQ
Do the kits include anchors?
They use trees or posts. Trailblaze, Slackers Deluxe and Trelines list tree huggers or holds.
Why do some counts differ?
Some titles count accessories differently from the details. Read the contents list.
The Short Version
For variety, the Slackers Deluxe. For a first kit, the Slackers Intro. For a long single line, the SereneLife. For two lines and a long warranty, the Trailblaze. For a saucer swing, the AOBOTE. For a compact set, the Trelines.