Feature●Total Hight: 36mm/1.42 inch; Wheel Diameter: 1 inch●Plate Size: 39 x 34mm/1.54 x 1.34 inch (Screws are included here)●Main Material: Metal, Rubber; Max Load bearing: 20KG(each)●Non-marking, provides low starting and rolling resistance, roll quietly and smoothly.●Strong Bearing Force: Smoothly moved with no marking, wont harm your wooden floor.Description