We offer discount for large quantity. Welcome to us4 x 50mm Heavy Duty Swivel Casters with Brake for Furniture on WheelsSolidly made, very for furniture360 degree swivel: runs smoothly on the floor and without extra noiseDouble ball bearing: maximum load per double shaft: 100KG, high safetyWith brake: can stop the wheel rolling and the whole swivel assembly, easy to lock/unlockGreat Feature: It can be used for many indoor or outdoor general-purpose applications. Single Tire Width: 19mmOverall Height: 75mmWheel Diameter: 50mmMounting Plate Size: 60x60mmBolt Hole Spacing: 46x46mmWheel Type: Straight BearingsNo Necessary Fixings (No Screws Included)Easy to Install, Square Plate with Hole to Screw or Screw for ApplicationIdeal for a Huge Range of Applications from DIY to Industrial Applications (Home, Schools and Shops)For example, use for cabinet, trolley, table, computer desk, cabinet, drawers, sofa, pallet furniture, small appliances, rack, etc. Color: BlackMaterial: Metal + TPR Package Content: 4 * Rope Pulleys Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm. About UsWe provide good product with best price, we support wholesale order/