Shepherd Hardware 9441 7/8-Inch Threaded Stem Appliance Caster, Dual Wheels, 4-Pack Load rating: 250 pounds Replaces factory wheels or legs on refrigerators, freezers, washers, dryers, and other heavy appliances Split 4 wheel design permits easier steering Simply remove old glides or levelers, screw appliance caster into threaded sockets Provided with 4 jam nuts for easy alignment and height adjustment