Heavy Furniture Roller Move ToolsMain Features 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. 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