ADJUSTABLE HEIGHT: This set includes 4 risers. These risers can be used individually, as well as stacked to raise HEAVY DUTY QUALITY: The furniture riser is made of high quality heavy-duty plastic, which can support up to 1,500 lbs. wide to proper installation. CREATE EXTRA SPACE: Elevate your bed and furniture to create more storage space and optimize the available area, suitable for small bedrooms and dorm rooms with limited storage space. IMPROVED ERGONOMICS: Bed lifts risers can help people with back pain or limited mobility, facilitating their sitting and standing process. FITS MOST FURNITURE: This furniture riser is suitable for tables, chairs, sofas, beds and cabinets, providing extra storage space while protecting both your valuable furniture and floor from damaging. Colour:black Material:rubber size:12x8cm Package Contents: 4 * Bed Risers Only the above package content, other products are not included. Note: Light reflection 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.