【Premium Carbon Steel Material】 Made of high-quality carbon steel with a quenching process and chrome-plated surface, providing high hardness, excellent strength, wear resistance, and long-lasting durability for bicycle maintenance. 【Universal Crank Puller Tool】 Designed with a universal size to fit most ISIS and square tapered crank systems. Compact and lightweight design makes it easy to store in a toolbox or carry during cycling trips. 【Dual Function Removable Cap】 Features a detachable cap design that adapts to different crank types. The precision thread helps protect the crank from damage while ensuring smooth and convenient operation. 【Easy Crank Removal & Repair】 Helps separate the bicycle crank arm from the frame quickly and efficiently. Simply use with an adjustable wrench to complete crank removal and maintenance at home. 【Wide Compatibility】 Suitable for maintaining various bicycle cranksets, including mountain bikes, road bikes, exercise bikes, and children's bicycles with ISIS or tapered crank systems., Manufacturer: Trifletopia