SOLID MATERIALS:Furniture risers made by durable plastic,Every risers can handle heavy duty furniture up to 1300lbs.easily hold your heavy duty furniture and wouldn't wobble.[Effective use of space ]When your bed becomes taller after you use the bed risers, you can get more space under your bed, then you can place some uncommon things under the bed, so that you can use the space more efficiently.[Adjust height as you own like ] Customize to you own needs can be used either as a single layer or multi-layer Warm Tips:The outer height is 4.8cm, the width is 8.4cm, the inner width is 7.6cm, and the height is 4.4cm, bed risers might be stacked together when you want more space under your bed or under any Furnitures, you can choose 2 sets, then you can get double high and space ANTI-SLIP AND SHOCK ABSORPTION:Anti-slip design of the top triangular cone avoid furniture sliding around,Rubber Lower Layer design protecting the floor from scratches,and reduce vibration.Multifunctional Design: The raise bed frame legs can be used on a wide variety of furniture pieces, including desks, chairs, sofas, caster wheel furniture and beds. They are a great solution for any room of your home, ensuring more storage space.Material:Plastic, rubbercolour:blackPackage Contents:4 * Bed Risers (Including 4 rubber top pads)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.