Ultra Fab Products 10-4202 Mini Weld-On Steel Roller Weld-on Solid Steel Roller Super strong- machined from a solid piece of billet steel Economy roller ideal for use on drop hitches, skid bars, small to medium sized Class (A) motorhomes, Class (C) motorhomes, travel trailers, toy haulers and utility trailers 2-1/2" x 1-1/2" wheel with hardened steel axle bolt (no bearing)