<h3>About this item</h3><ul> <li>Package Specification: Bicycle Chain Repair Toolkit includes Chain Breaker, Master Link Pliers, Chain Wear Indicator and basic accessories (Note: Please choose either Bike Chain Breaker or Bicycle Chain Tool kit according to your needs)</li> <li>Professional Grade Chain Breaker: Chain breaker is universal for removing pins from 1- to 12-speed and single-speed bicycle chains</li> <li>2-in-1 Master Link Pliers: Dual function pliers for quick installation and removal of master links from bicycle chains</li> <li>Chain Wear Gauge: Precision measuring tool helps determine when a chain needs to be replaced to prevent drivetrain damage; if the 0.75 or 1.0 measurement on the checker goes all the way through the chain, it indicates severe wear and should be replaced immediately</li> <li>MATERIAL: Made of high grade alloy carbon steel, quenched and hardened for higher hardness, hardness 600~650HB, sturdy and durable, reliable quality assurance. With rubberized handle, ergonomically designed for comfortable grip</li> </ul>