We offer discount for large quantity. We invite you to ! Heavy Duty 75mm Swivel Casters With Brake Casters Furniture Casters, Set of 4 Pieces Made of steel and pvc Double Ball Bearing Swivel Head Swivel Head Swivel Wheel Fixing Bolt This is a set of four heavy duty swivel & braked wheel mounting bolts with M12 thread mounting bolt and pvc wheels. It is perfect for a variety of applications, from DIY to industrial applications (shops, schools, home and hospitals). Made of heavy steel and pvc double ball bearing swivel head with M 12 thread bolt wheel mount type: plain bearing, heavy duty PVC includes 2 x swivel wheels, 2 x swivel with brakes load: 200Kg/ 440 lbs (50Kg/110 lbs each) Great for a variety of applications, from DIY to industrial applications (shops, schools, home and hospitals)Color: Picture ColorMaterial: PVC, MetalCircle Size: 75mm Thread Size: 12*30mmPackage Contents: 4 x WheelsOnly 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/