Part #: N1D110919BR1122SS Product Overview: Bed risers size 6-1/4 inches, SS. Molded Black Bed Riser set of 4. Load Capacity: 300 Lb. each. Material: Plastic Special Features: Rectangular Usage: Used For Posts Or Casters Up To 2-3/4 Inch Diameter. Features: Increases Additional Storage Space Underneath A Bed Up To 5-1/4 Inch. Accommodates Large Storage Boxes. Can Hold Up To 300 Lbs. Fits Most Posts Or Casters Up To 2-3/4 In Diameter