[Specifications] An indispensable companion for security ziplines. The 5.4-foot spring brake is suitable for decreasing the impact force at the end of the rope, similar to metal cable slanting and load lifting. Excellent performance in stretching and rebounding. The size of the rubber head is 7 x four x 4cm.[Extension Spring] The Zipline spring brake with a 5.4-foot spring is longer than most different same spring brakes on the market. Has an extended effective deceleration distance. The deceleration functionality is better and easier.[Flexible and durable] The zipline spring brake is product of stainless steel, which has higher tensile resistance than chrome steel of the same size, is durable and won't rust. After a number of forging processes and strict quality control, our Zipline spring brake cables have a longer carrier life.[Special silica gel buffer plug] The star-shaped tender plug made of silica gel is versatile and will not injury different parts or break. Mature and delightful production process to make sure that every single product has superb performance. The pitch of each spring is uniform, the feel is clear, and the beautiful craftsmanship ensures secure resilience.[Easy to install] No instruments are required, simply go the cable throughout the green star-shaped silicone plugs at both ends.Colour: as shownMaterial: Stainless metal + rubberSize: complete size 165cm, spring outer diameter 2.5cmPackage Contents:1 x spring2 x Silicone headOnly the above kit content, other products are not included.Note: Light shooting and varied reveals could cause the color of the item within the picture a bit of varied from the genuine thing. The dimension allowed error is +/- 1-3cm.