NTR Zipline Spring Brake Extra Long 6.6FT, Kids Backyard Heavy Duty Zip Line Brake System/Stop/Stopper, High-Strength Compression Stainless Steel Spring, Ziplines Parts for up to 3/8 Inch Cable

【Professional Zipline Brake】Suitable for zip lines less than 200ft, compatible with 3/16, 1/4, 5/16, 3/8 inches diameter zipline cable/wire. Our one piece zipline spring brake can protect adults whose weight is within 350lb on the safe slope 2°to 3° of the ground（drop rang 3%-5%). If the zipline wire lenght more than 200ft or the ridder weight more than 350lb, two, three or four springs can be added to your zip line for additional stopping power. 【Compression Zipline Spring】It is not the length of the spring, but the compression force of the spring that really determines whether to brake in time to ensure safety. Our 6.6ft extra long high-strength compression stainless steel spring is a great addition to your backyard zipline. Our Upgrade sturdy stainless steel spring has longer service life, which is more weather resistant than other bungee brake. 【Superb Craftsmanship】Unlike the others, Our rubberized stoppers was One-time injection molding with no cracks and gaps. The spring and the rubberized stoppers are firmly bonded together that you don't have to worry about the damage caused by thermal expansion and contraction in spring, summer, autumn and winter. 【Easy to Install】Without any tools Just feed the zipline cable through the rubber ends of the spring brake and you are ready for installation within 1-2 minutes without any tools. 【Great Value and Full warranty】We have improved the manufacturing process of the spring, the production cost is drastically reduced while ensuring the quality. It will safety for both kids and adults. If you are not completely satisfied with your purchase, please feel free to contact us.