1. Comprehensive Application Chain Tool is for chains from 3/32 inches to 3/16 inches. Alignment is during use. Otherwise, damage and other issues may occur. It is suitable for all regular bicycle chains, mountain bike chains, and 8/9/10 speed regular bicycle chains. 2. Easy for Users Bicycle Chain Removal Tool is applicable to all types of bicycles, including mountain bikes, road bikes, and folding bicycles. It comes with a pin drive, enables easy chain breakage, and allows for quick and accurate disassembly and installation of chain pins. 3. Easily Carry No need for tool . There is no need to worry about chain damage during cycling. Bike Chain Breaker is very compact in size and can be placed in a pocket or bicycle bag, with a handle length of approximately 70mm / 2.76inch. 4. Sophisticated Workmanship Chain Breaker Tool is made of selected strength steel materials with a contoured buffered rubbercoated handle. It is an tool for outdoor cycling or urgent use, treated with workmanship and is exquisite.