【PREMIUM MATERIAL】AIRUJIA furniture raiser is made of carbon steel with a diameter of 40mm and woven fabric, which is designed to raise and stabilize furniture.Protect floors without occurring any dent or crack on hardwood or hard surfaces. , 【Raise the Height of Furniture for Easy Cleaning】The furniture lifter raises the furniture by 50mm, increasing the height of the furniture, facilitating the cleaning of the sweeping robot, and expanding the storage space. , 【Suitable for Most Furniture】This home furnishing accessory fits into raising desks, chairs, sofas, couches, armchairs and beds. Its strength can handle heavy duty furniture and protects your floors, gives you storage space. , 【Easy to Use】Self adhesive bed risers ,just peel off the back cover of risers and stick on the furniture legs. Set of 4 Furniture Risers( Diameter: 40mm/1.57,High: 50mm/1.97 inches). , 【After Sales Service】100% crack free warranty from registered brand . Other risers crack easily in spite of assurances and that has become the highest rated complaint of consumers but AIRUJIA risers offer 100% warranty against cracking. Customer satisfaction is our greatest pursuit. We are try our best to providing best service for you. If you have any question, contact us anytime, we will reply you in time and help you solve the problem.