Ergonomic design and labor saving furniture & heavy object lifter and sliders kit tool set, Max. bearing capability: 180kg, 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, so you can easily move furniture or heavy objects with little effort to the place you want, Note: 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 0.5 inch / 3.3 cm to avoid your furniture tilting,