Plastic 3, 5 or 8 Inch Heavy Duty Risers for Sofa, Table, and Chair - 8 Piece Set Four units together support up to 1,200 pounds, whether used as 3-inch risers, 5-inch risers or 8-inch risers. Color: Black, Made of heavy-duty unbreakable plastic. HomeRoot Adjustable Bed Risers provide a simple but essential tool for adaptive living. With three height options, you can use the pieces as bed lifts, sofa risers and chair risers to find the best height for you or your loved one. Use these risers to effectively utilize under-the-bed storage and safely hoist your beds or furniture to an extra 8". A hassle free answer for little rooms, apartments, and condos with constrained storage space.