Pp 【SOLID MATERIALS】:Durable PP furniture risers can hold up to 3300 pounds of furniture. They won't wobble and are easy to use.More stable( Diameter :2.71",High: 3.53"） 【ADJUSTABLE DESIGN】:Round bed risers can be easily assembled to a suitable height.Additional space has been added under the bed and furniture to make cleaning more convenient. 【ANTI-SLIP SHOCK ABSORPTION DESIGN】:The bottom of the riser is designed with TPU non-slip rubber pad,it can protect furniture and floors from scratches，and reduce vibration.It also can protect them from moisture.Risers apply to raise beds,sofa,couches,cabinets,tables,chairs and fridge. 【PACKAGE CONTENTS】: There are 4 sets in the box，each set includes 3 brown riser and 1 TPU bottom.Tips: As the furniture has a certain weight, it is best to install it by two people to ensure safety.Please check the size before purchasing the product. 【SATISFACTION SERVICES】: HANIHUA is committed to providing our customers with premium quality risers. If you have any questions, please tell us, and we will promptly provide you with a solution. Please rest assured to buy!