Our sofa risers are mainly made of high-quality plastic, and portable, strong enough to bear the weight of heavy furniture for home or office, easily and securely fix your furniture, the bottom is designed with anti- design, will not or scratch the floor easilyAdjustable raised height, our furniture raised height is about 1.38 inches / 3.5 cm, the rubber ring at the bottom can be removed, then you can stack these bed raisers together for more reasonable use, suitable for furniture Leg diameter within 1.97 inches/5 cmThese bed risers can be used for multiple lifting purposes such as raising furniture, chairs, sofas, desks, couches, beds, refrigerators, washing machines, bookshelves, etc., providing storage space while protecting your furniture and floorsAnti- and shock-absorbing, the anti- design of the top triangular cone can prevent the furniture from sliding left and right, and the rubber bottom layer at the bottom can effectively absorb impact and prevent scratches on the ground, our stackable bed risers can be practical in your size: about 7 x 7 x 3.5cmMaterial: plasticcolour: BlackPackage Contents: 16 x Stackable bed risersOnly 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.