Product descriptionColor:BlackOur castors are an excellent help for your day by day routine. If you want DIY, this can be a perfect shopping experience.-L-shaped mounting plate casters are really easy to install. It has the purposes of protecting the floor, quiet and soft rolling and secure braking.-Ball bearing and gentle double bearing, silent, wear-resistant, pressure-resistant, smooth to head the furnishings to any path easily.-High-quality and sturdy silent PVC plastic material, don't fear about worrying your baby's sleep when cleaning the house or moving furniture.product data:Wheel diameter: 40/50mmSingle wheel sporting 40KG / 88 pounds; four wheels sporting 120KG / 265 poundsPackage Contents:4x casters (with screws)