Excellent QualityOur crank puller is made of high quality cold head steel, which has higher hardness after quenching, is durable, has a long service life, and is not easy to rust and fade. corrode. Convenient UseSimply remove the screw in the crank with a wrench,Screw the black bottom part of the tool back into the crank until it stops, Screw and keep tightening the silver part of the tool until the crank starts moving. Easy to use and suitable for beginners. bicycle crank to remove the crank arms from the bottom bracket. This bottom bracket removal tool has a detachable head that ensures it fits any type. It is an ideal replacement repair tool for bicycles. Convenient Use:The tool bicycle crank puller puller has a removable dual-function cap, so the pulley can be applied to oversized spindles, a longer lifting rod makes it easier to use, bringing much more convenience for your use. Color: Black Size: 7*2.1 cm Quantity delivered: 2 pieces Product dimensions are all measured by hand, there are errors and the actual product shall prevail. Product color is affected by shooting light view and there is a slight color difference, which depends on the actual product received.