Durable Material: The crank remover is made of high quality carbon steel material and quenched to increase the hardness of the remover. It will not damage the thread of the cranks and it will be used for a long time Standard Size: each bike crank puller measures approx. 8 x 2.4 x 2 cm/ 3.15 x 0.94 x 0.79 inch, compact size and light weight. With them, you can store it in a small place and carry it outdoors Convenient to Use: The bike crank puller removal tool has a dual-function removable cap, allowing the pulley to be installed on oversized spindles. Longer lift rod makes it easier to use and much more convenient for your use Necessary tool: The bicycle crank arm puller is designed to separate the crank from the bicycle bottom bracket. You can easily repair the bike yourself Widely used: The bicycle crankset remover is used to remove the crank arms from the bottom bracket. The detachable head allows installation in a conical design and thus ensures a wide range of applications