Warning: You need to lift furniture off the ground 1/8 inch height to let the furniture lifter under the furniture, and the height of the feet can not be higher than 0.5inch/3.3cm to avoid your funiture tilting.Easy to Use: Put the lifter under to furniture and lift it up(can lift your furniture to 2" high), then let 4 pcs rollers into the 4 corners. It can bear 150 KG/330Lbs, so you can easily move furniture or heavy objects. You can browse the third picture for reference.Premium Quality: Made by durable steel body, PVC plastic spraying handle with anti-slip design. The 4 pack wheel rollers are made by ABS plastic.Safety Design: 360 degree formable and rotatable pads conforms to furniture legs, appliance feet to hold securely. Great for sofas, bookcases, tables, chairs, beds, piano, washer/dryer, refrigerator, etc.After Sale Service: If you are not Satisfied with your purchase, we will provide full refund, and if you still believe our products, we will provide a new replacement. If you have any questions, please connect us.