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. Made by a durable steel body, PVC plastic spraying handle with anti-slip design. The 4 pack wheel rollers are made by ABS plastic. 360 degree formable and rotatable pads conform to furniture legs, appliance feet to hold securely. Get it now!