4/6Pcs Furniture Risers Heavy Duty Adjustable Bed Raising Desk Leg Chair Feet Lifts Non Slip Extenders for Table Sofa Features: [High Quality ABS Plastic and Rubber] This furniture riser is made of ABS plastic and rubber, which is stable and has good weight-bearing capacity. Each set of furniture riser can hold large furniture weighing up to 6,000lbs, stable and no need to worry about the furniture wobbling. [Non Slip and Vibration Reduction] The top of this sofa riser is designed with a triangular cone, which effectively prevents furniture from sliding from side to side. The bottom of the 3-inch bed frame riser is designed with TPU non-slip rubber, which protects the floor from scratches and reduces vibration and noise. [Adjustable Design] This bed lifts riser can be stacked and used thus adjusting the height, it can be easily assembled to the right height. Stacking the upper and lower layers can increase the height by 8cm / 3.1 inches, using only one layer can increase the height by 5.3cm / 2.1 inches. It extends the space under beds and furniture for effortless storage and cleaning. The rounded design makes it easier to match the bed raising block to the furniture legs. Specification: Product Name: Bed Riser Material: ABS Plastic + Rubber Color: Black Quality: 4Pcs / Set, 6Pcs / Set Suitable for: beds, sofas, washing machines, refrigerators, tables, chairs, cabinets, coffee tables, etc. Size: The overall height of the double layer is 8.4cm / 3.3 inches, the outer diameter is 6.7cm / 2.64 inches, the inner diameter is 4.7cm / 1.85 inches; Combination of double layers together can increase the height by about 8cm / 3.1 inches, only one layer can increase the height by about 5.3cm / 2.1 inches, suitable for furniture/appliances with the diameter of the bottom of the round legs less than 1.8 inches, suitable for furniture/appliances with the length of the bottom side of the square legs less than 1.3 x 1.3 inches. Package includes: 4/6 Upper Bed Risers 4/6 Bottom Bed Risers _x000D_