5/8-inch Roller Ball Transfer Bearing Casters Units, 22lb Load Capacity, Table Conveyor Roller Ball for Transmission, Furniture, WheelchairFeature:Rotation is smooth, unimpeded, and light, suitable for various scenes.The wheels are made of nylon, wide and thick to steer smoothly, has a good mute effect, and no damage to the bottom plateThe casters have a wide diameter and strong load-bearing capacity, which makes the wheels more durable and wear-resistantThickened fixed connecting plate, high-strength and high-density galvanized bracket, stable and firm. Specification:Material: Nylon, metal Dia: 5/8-inch Roller Ball Bearing, L*W: 4.9x3.3cm/1.93x1.3in Installation height: 2cm/0.79inUses: industrial castersMaximum load: 22lb Package Include:6 x Roller Ball Bearing Casters