<p>Bicycle Chain Wear Chain Tester Caliper Black</p><p>Durable: The bicycle chain wear indicator is made of high-quality carbon steel with nickel plating on the surface, which has good wear resistance and is not easy to wear, strong and durable for long-term use</p><p>Suitable Size: The length of the chain wear indicator tool is approx. 14 cm/5.51 inches, flat design, suitable size, lightweight and portable, no burden to carry and store, takes up less space Simple operation: just insert the chain wear checker into the bicycle chain, if the end (.75) cannot be inserted, the chain wear rate is normal and no replacement is required, if (.75) can be inserted, it is recommended to replace a new chain, if the end (1.0) can be inserted, the chain should be replaced as soon as possible</p><p>Important bicycle maintenance tools: The measuring ruler can be used as a basic and important tool in daily life to help you measure the wear rate of the chain to determine whether a new chain is needed, which can effectively prevent the accelerated wear of the flywheel and disc</p><p>Wide range of applications: The bicycle chain measuring tool can be applied to most types of bicycles, is a good helper in daily life, keeps your bicycle working properly, and brings more convenience to most people</p>