1 Polyurethane (PU) swivel wheels provide the elasticity of rubber wheels combined with the toughness durability of metal wheels Safe for all types of soil - Heavy duty trolley wheels have a capacity loading 200 kg - (50 kg per wheel) 2 Heavy-duty casters swivel 360 degrees Smooth quiet sturdy When the brakes are applied, the mounting plate the wheels are locked simultaneously 3 4 x pivot with brake Ball bearing double locking provide maximum loading capacity safety 4 Wheels are ideal for a wide variety of DIY uses to industrial applications at home, schools, garage, stores, carts hospitals, perfect casters for small equipment, furniture, ottoman, table bass, plant sts, shelves, caddies, workbench 5 The products are all taken in kind Due to ambient light / display resolution other reasons, there may be some color difference between the picture the actual object Please refer to the actual color Size: 2inch and nbsp; | and nbsp; Color: 4without Brake Name: Heavy-duty casters High quality materials total durability Simple installation easy maneuvering Perfect for moving small equipment small space furniture, including coffee table, plant sts, shelves, shoe bins, toy bins, shopping carts workbenches Ideal for a wide variety of uses ranging from DIY to industrial applications in homes, schools, stores hospitals, etc Features: - Robust steel plate and nbsp; - Double ball bearing swivel head - Wheel type: black polyurethane, roller bearing - Load capacity: 200 kg (50 kg each) Package contents: - 4 x wheels