Product Material: carbon steelSize: chain cutter: upper width 56mm, lower width 28mm, total length 82.5mm, handle length 60.5mmQuantity: 3-piece setPackage content: 3 * chain repair kit for bicycles, 3-part chain ruler set1. Bicycle Link Pliers used for quick removal of connection links, advanced tool for both opening and closing, chain master link remover and connector 2 in 12. Bicycle Chain Wear Indicator Tool can allow you to quickly assess the chain wear and stretch, helping you decide whether or not to change a new one3. OVERVALUED BIKE REPAIR TOOL KIT: Three tools in one kit - bicycle link pliers, bicycle chain cutter and bicycle chain test saddle. All are made of high quality steel and have a rustproof coating. Perfect for all of your bicycle chain repairs.4. WELL DESIGNED BICYCLE HANDLEBAR: Unique spring design that uses the lever principle of physics saves time and work. The use of non-slip rubber grip and a linear non-slip texture make the bicycle link pliers effortless to use. There is also a buckle on the underside of the pliers for convenient storage.5. HIGH PRECISION CHAIN CUTTER: The top of the chain cutter has a unique groove that makes it easier to see the distance between the ejector pins and remove the cutting chain with the pins on the tool. With the frame shaft design and the alloy steel nail pin, it is non-slip and robust.