Wheel Dia: 40mm / 1.54inch ; Capacity: 30kg / 66lb (4 wheels).; Style: Swivel with Brake. Mounting Hole Diameter: 5mm / 0.20inch ; Hole Center Distance: 35mm x 27mm / 1.39inch x 1.08inch . Install Type: Plate Mounted; Package Content: 4 x Plate Mounted Caster. Mounting Screws are not included. Perfect casters for small equipment and small space furniture including coffee table, plant stands, bookshelves, shoe bins, shopping carts, workbench. Note: Total Max capacity for 4pcs casters is 30kg / 66lb . Please check the wheel mounting size and capacity before buying.