[Specifications] An indispensable partner for safe ziplines. The 54-foot spring brake is suitable for reducing impact force when using ropes, such as inclined steel cables and lifting loads. Excellent performance in stretching and bouncing. The size of the rubber head is 7 x 4 x 4 cm. [Expansion Spring] The zipline spring brake with a 54-foot spring is longer than most other similar spring brakes on the market. It has a longer effective braking length. Braking performance is better and simpler. [Flexible and Durable] The zipline spring brake is made of stainless steel, which has better tensile strength than stainless steel of the same size, is durable and does not rust. After several forging processes and strict quality control, our zipline spring brake cables have a longer service life. [Special Silicone Buffer Plug] The star-shaped soft plug made of silicone is flexible and will not damage other parts or break. Mature and exquisite production process ensures that each product has excellent performance. The pitch of each spring is even, the texture is clear, and the exquisite craftsmanship ensures stable resistance. [Easy to Install] No tools needed, just pull the cable through the green star-shaped silicone plugs at both ends. Color: as shown Material: Stainless steel + rubber Size: length 165 cm, spring outer diameter 25 cm Package contents: 1 x spring 2 x Silicone head Only the contents of the package above, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be a little different from the real thing. The allowed measurement error is +/- 1-3 cm.