1.COMPLETE BIKE CHAIN REPAIR KIT:Our bicycle chain repair kit comes with everything you need to fix your bike chain on your own whether or on the road. Each pack comes with bike link pliers, chain wear indicator and checker along with a chain breaker splitter tool 2.QUICK JOINING & REMOVING:This professional bike tool kit comes with bike link pliers that allow you to quickly and easily remove and join links in your bike chain. It allows you to both open and close chain connectors while the anti-slip handles provide a firm grip and more control 3.EASY TO BREAK & RECHAIN:The bike chain rivet extractor with chain hook makes it easier and faster to remove and insert pins in your bike chain while keeping it firmly in place to prevent it from moving. It's compatible with 7, 8, 9, 10, 11 and single speed bicycle chains to install and remove pins 4.CHAIN WEAR INDICATOR:To help you understand when it's time to change the bike chain we include a chain wear checker and indicator to assess the