Stainless steel + aluminum alloy. V-type brake pipe: light weight, easy to carry and use. Cycling V-type brake line: the inner line tube is smoother, elastic and flexible. Mountain road brake line: made of high-grade materials, durable. Flexible brake line: thickened tube wall, more wear-resistant. V-type brake line: universal, as long as it is a V-type brake, it can be used. The line cap is made of aluminum alloy, which is more durable and wear-resistant, and can withstand relatively large pressure and impact. Length: 0.43 inches/1.1 cm, aperture: 0.08 inches/0.2 cm; suitable for cables 0.08 inches or smaller. These cable end caps increase friction, you can hold the cable firmly, and then adjust the screw with your other hand without having to hold the cable hard. The cable end cap is worn on the end of the cable to avoid scratches and keep the cable end neat, suitable for all brake and derailleur inner cables. Lightweight, reusable and durable. Perfect for mountain bikes, BMX, road bikes and folding bikes, etc. [Application] The shifter clamp is suitable for 22.2mm handlebars, compatible with Sram X7 X9 XO XX XO1 XX1. [Easy to install] This Sram shifter clamp is easy to install firmly with bolts (not included), which can provide a rock-solid grip. [Premium material] The shifter clamp is made of high-quality aluminum alloy, which has excellent stability, light weight but high strength. [High-quality accessories] The shifter clamp ensures the use experience, it can help you improve your riding performance