Save some money and hassle by using this kit to change your bike's bearings yourself. Designed to remove and install 3/4", 1", and 25 mm sealed type wheel bearings from 2000 and up without harming your wheels.; Tool kit includes an installation bolt, expander dowel, three removers and installers: 3/4", 1", 25 mm, main body puller, copper washer, installer backing plate, necessary nuts and bolts, and a written manual and video tutorials