Material: All tools are made of high quality steel with durable and precise parts. Practical, durable and well made. Bike chain remover and chain plier metal frame with rubber coated handle for comfortable, non-slip handling. Super practical! Premium chain pliers: bicycle quick chain, 2 in 1 quick opening and closing pliers, easy to remove and install the quick link, portable pliers for road bike. p> ToolHigh precision bicycle chain wear indicator tool: chain checker, quick and easy wear measurement. Made of hardened steel, two precision displays of 0.75 and 1.0. So 0.75 is the official wear limit for chain use, 1.0 for use with steel sprockets. Help you quickly decide whether to change a new one or not. Professional Chain Remover: Very smart design of the bike chain tool, easy to break, easy to rechain - the unique groove on the top makes it easy to see how far you have taken the peg out and remove the cut chain with tearing off the tool. Universal and portable: It is small and sturdy, easy to carry, can be used as a travel tool kit to solve most bicycle problems. Suitable for touring bike, road bike, city bike, mountain bike and racing bike etc.