Swivel Plate Aluminum Swivel Plate with Carbon Steel Ball Bearing, Rotator, Revolving Trays and Turntables Swivel PlateMaterial: aluminumOuter diameter: 80, 120, 140, 200, 250, 300, 350, 390, 400, 450, 500, 600, 800 and 1,000mmThrough holes can make customer's requirements to be fixed360 degrees swiveling for display equipments