High quality material: Bicycle brake protection boots are made of high quality rubber material, waterproof, dustproof, durable and wear-resistant. Utility: Bicycle brake boots can extend the service life of steel wire and improve the feeling of brake rebound, which is very important. Stable performance: The installation of the bicycle brake boots is stable and does not affect the bicycle braking. Application: Bicycle brake protection boots are suitable for the V-brake of most curved mountain folding bikes. Easy to install: Bicycle brake boots are light, portable and easy to install.