Tooluxe 20767L Steel Fender Rolling Tool | Locks on Wheel Mount Lugs | Wheel Arch Flaring, Forming, Extending Roller works on fender from inside wheel wall to repairs collision damage to wheel arches Constructed with hardened, heat treated steel for increased durability and longer service life Locks onto wheel mounts with 4 or 5 lugs and fits most domestic and imported cars and light trucks Can be used to flare fenders and increases tire to wing clearance to fit larger, wider tires Dimensions: internal diameter: 73mm (2-7/8"); external diameter:148mm (5-7/8") and adjusts from 14" to 23"