Description: Heavy Duty Multi Height Bed Risers Bed Lifts - Adjustable to 8, 5 or 3 Inch Heights - Additional Under Bed Storage 8 piece set, included 4 pieces small bed lifter and 4 pieces big one; you could apply small one bed leg to get 3-inch high, or choose big one furniture leg to get 5-inch high, or combination of the two to get 8-inch high Modular strong design, heavy duty construction, support up to 1800 pounds, and would't scratch or dent hardwood floors It could help you storage more under bed Used for any furniture with 4 legs, bed, sofa, cabinet, etc Size: 160x95x223mm / 6.3x4x8 inch (please refer the size picture) Package Includes: 4 Piece Small Bed Riser 4 Piece Big Bed Riser