Furniture Lifter with 4 Pack 3.9"x3.15" Furniture Slider, Heavy Furniture Roller Move Tools Up to 150 KG/330 Lbs, Fits Wood Floor and Tile Floor How to Use: 1.put the lifter under to furniture and lift it up 2.let 4 pcs rollers into the 4 corners 3.remove the furniture lifter and let your furniture moved by 4 mover pad sliders Warning: You need to lift furniture off the ground 0.098in/ 2.5mm height to let the furniture lifter under the furniture, and the height of the feet can not be higher than 1.5inch/3.3cm to avoid yuor funiture tilting. Specification: Material: Steel body, ABS plastic wheel roller, A3 pry bar, PVC handle, Spray surface Product weight: 1.1KG Mobile board size: 105 * 80 * 22MM box size: 33 * 10 * 10cm Product includes: 1x red crowbar 4x red panel