A. Specification It can be a good partner for safety zip lines. 1. The 5.4 - foot spring brake may be suitable for reducing the impact force at the end of the rope, such as when the cable is inclined and the goods are being hoisted. 2. It has good stretching and rebound performance. 3. The size of the rubber head is 7×4×4 cm. B. Extended Spring This zip - line spring brake with a 5.4 - foot spring is longer than many other similar spring brakes on the market. 1. It has a relatively long effective deceleration distance. 2. It has relatively good and easy - to - achieve deceleration performance. C. Flexible and Durable The zip - line spring brake is made of stainless steel. Compared with ordinary stainless steel of the same size, it has relatively good tensile resistance, is durable and may not rust. 1. Through multiple forging processes and strict quality control, the cable of this zip - line spring brake may have a relatively long service life. D. Special Silicone Buffer Plug The star - shaped soft plug made of silicone is flexible, may not damage other components, and may not break. 1. The mature and exquisite manufacturing process helps ensure that each product has good performance. 2. The spacing of each spring is uniform, and the texture is clear. The exquisite craftsmanship helps ensure stable resilience. E. Easy to Install No tools are required. One can simply pass the cable through the green star - shaped silicone plugs at both ends. F. Color As shown in the picture G. Material Stainless steel + rubber H. Size The total length is about 165 cm, and the outer diameter of the spring is about 2.5 cm. I. Package Contents 1. Spring × 1 2. Silicone head × 2 Only the above package contents are included, and no other products are included. J. Precautions 1. Light and different displays may cause slight differences between the color of the items in the picture and the actual product. 2. The allowable measurement error is about +/- 1 - 3 cm.