RunLock · Dog leash
One piece of rope, no metal
The leash is one piece of RunLock. No swivels, clips or chains: nothing to break, nothing to rust and nothing that rattles. When it is muddy, it goes in the washing machine at 40 °C.
In the pack
Specifications
- Length
- 1.8 m, adjustable
- Material
- 100 % polyester
- Care
- Machine washable, 40 °C
- Made in
- Tösse, Sweden
Watch the videoOn YouTubeThe two locks in the leash

With a stop: it tightens only as far as you set it (controlled semi-choke). Move the stop one loop at a time to fit the dog. No collar needed.
Step by step
Stays the size you made it.
Step by step
About RunLock
RunLock is a braided polyester rope whose two halves are braided together every few centimetres and run free in between. Every free stretch is a loop, and every lock is the rope through one of its own loops: no knots, no hardware.
- 100 % polyester, nothing added
- Washable, does not rot
- Shorten: cut across the middle of a loop. Extend: join two ropes loop to loop
- Braided, tested and packed in Tösse, Sweden
Try itTry the locks on a 3D ropeA loose rope on a wall with two hooks and a ring. Drag it, thread it and lock it, right in the browser.Open the 3D rope More from RunLock

1.8 to 2.7 m, orange and black. The hand loop opens into a body loop for hands-free work.
See it in the shop
The locks step by step, the sizes and the rope at work.