Help protect damage to hitch, holding tanks and undercarriage when pulling through low driveways. 4" x 2" heavy duty metal wheels with roller bearings, grease fittings and 1/4" of tough urethane on outer edge for mark free driveways. Ideal for Class C and front engine Class A motorhomes up to 30'. Bolts onto hitch bar in minutes using wrenches. Fits 2-1/2" hitch bars and wheels swivel. 2 per pack.