Greenco Super Strong Bed and Furniture Riser, Sleek Design, Great for Under Bed Storage - Pack of 4 Instantly add an additional height of 5.25 Inch Made of heavy-duty unbreakable plastic; can carry even the heaviest furniture in your home. 1200 lbs limit per set Great for creating more storage space underneath your bed May be conveniently used on virtually any Type of bed; features a 3/4-inch raised edge to keep bedpost or caster securely in place Bed risers may be stacked together when not in use to conserve space. Works with a maximum bedpost diameter of 2.75 inches.