King's Brand Heavy Duty Caster Wheels For Bed Frame ~Set Of 4~ (2 Locking & 2 None Locking) Kings Brand Furniture - Heavy Duty Caster Wheels For Bed Frame, Set Of 4 (2 Locking & 2 None Locking) Bed wheels provide an easy replacement solution. Plastic plug inserts included. Fits most bed frames. Dimensions: 2"W x 2"D x 4"H Weight Capacity: 600 LBS