Reliable material: This crank puller is made of high-quality metal and has a very durable, high-performance inner bearing. The combination of stainless steel and high-quality plastic ensures a long service life. Easy to use: Easy to install and use. This tool is used to remove square crank arms. The crank puller can be used with 24 mm sockets, wrenches or adjustable wrenches. Widely applicable: If you have a bicycle accident on the road, the crank puller you use to remove the sprocket and crank arm will help you quickly get out of trouble. You don't have to wait for a roadside parking space for help. Easy to install: Easy to install and use. This tool is used to remove square crank arms. The crank puller can be used with 24 mm sockets, wrenches or adjustable wrenches. Practical and fast, it helps you solve problems quickly, extends the removable ejector, sprocket and crank arm. Quality assured: this crank puller is made of high-carbon steel and is durable. Easy to use, suitable for beginners.