1、The flywheel remover is made of steel to assure firmness, durable and rust resistant. 2、The bike repair too kit is easy to operate, very convenient and practical. 3、The crank puller remover tool, an extended ejector, is used to remove chains and cranks, perfect for a square taper crank set. 4、The bottom bracket remover tool, 20 teeth, for disassembly of bicycle bottom bracket, high strength steel structure is very durable. 5、The bicycle chain cutter features a compact, portable design, two tone grip, comfortable operation, dual drive pin, easy to chain, specially designed to remove and install chain bolts. 6、Suitable for mountain bike crankshafts, easy to remove square and rolling crankshafts, suitable for bicycle repairing.