Rotate 360 degrees. Super Silent & Sturdy. Soft and non-skid wheels won't mark floorsCapacity: Total 100 lb for four casters. Bearing: Single ball bearing( 606zz bearing). Wheel Brake: ONLY locks the wheelWide differ of uses: Commonly used for small tasks and movable furnishings including dressers, crates, chairs, beneath mattress storage, shoe bins, toy bins, cabinets, bookshelves, easel, plant stands, footstools, etc...swivel casters can be utilized in both industrial and residential applicationsBall bearing: Single ball bearing.colour: Silver + brownmaterial: TPR+ metalsize: Wheel Dia.: 1 inch (25mm),Wheel Width: 0.5 inch (13mm),Overall Height: 1.5 inch(38mm),Plate Size: 1.5 inch (38mm) x 1.3 inch (33mm),Hole middle to gap center: 1.2 inch(30mm) x1 inch(25mm),Mounting gap diameter: 0.15 inch(4mm),Screw Size: 4mm (diameter) x 16mm (length),Package Contents:4*Universal casters (2 with Brakes & 2 Without)16*ScrewOnly the above package content, other products are not included.Note: Light taking pictures and different exhibits could cause the color of the item within the photo a little bit various from the genuine thing. The measurement allowed error is +/- 1-3cm.