1. Very robust for furniture or industrial equipment. 2. Can be used for many general purpose applications inside or outside. 3. With Brake can stop the wheel turning and the whole assembly revolving, easy to lock/unlock. 4. Use for cabinet, trolley, table, computer desk, wardrobe, drawers, sofa-bed, pallet furniture, machinery, rack, etc. 5. Square plate with hole to screw or bolt to the application,Perfect for a huge variety of uses from DIY to industrial applications (home, industry, schools and shops). Specification: 1.5-inch Wheel: Wheel Width: 16mm Panel Size: 44*35.6mm Mounting Hole Diameter: 4mm Mounting Hole Distance: 34*25.5mm Load Capacity of 4 Wheels: 66kg