This bike crankset crank arm puller tool is used to remove the crank arms off the bottom bracket. It is very easy to operate and for any bike crank home repairs. Removable head ensures that it will fit any type. The thread of this tool is very tough, so it will not damage the thread of cranks. Features -Color: Silver -Material: Aluminium alloy -Size: 8.00X2.00X2.00cm/3.14X0.79X0.79in - This tool is used to remove the crank arms off the bottom bracket. - This crank remover tool is very easy to operate and for any bike crank home repairs.It is very convenient. - This tool has removable head ensures that it will fit any type. And it is easy to install and use. - The thread of the crank extractor is very tough, so it will not damage the thread of cranks. - Adopted from material, it is durable and use. Package list: 1 x withdrawal tool