<p>[Load Capacity]: 28 lbs per wheel. 110 lbs total with 4 wheels, 220 lbs total with 8 wheels. Wheel Size: Overall Height 21mm, Mounting Plate Diameter 45mm (1-3\/4inch) Tips: 1. These casters only work on smooth and hard surfaces and may leave marks on wooden surfaces. 2. We recommend that you use screws to install the casters for heavy objects.</p> <p>Low profile and 360 degree swivel, low profile casters don't add much height to furniture but can support a lot of weight. The larger steel balls in the ABS bracket roll more smoothly than other small balls.</p> <p>Installation is quick and easy, use the included adhesive pads or screws to mount the swivel wheels to the feet\/legs of coffee tables, shelves, cabinets, dressers, plant stands, and more. Make moving furniture quick and easy.</p> <p>Not only for furniture but also for storage containers, under bed storage drawers, tool boxes, air purifiers, stand\/tower fans...</p> <p>Colour:black</p> <p>Material:ABS+metal</p> <p>Package Contents:</p> <p>8 x Self Adhesive Caster Wheels</p> <p>32 x screws</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>