This turntable bearing helps you maximize your storage space by utilizing corners and cabinets. Extra tighten gap between two rings preventing dust, and debris enter the gap.Specification:Material: Aluminum alloyColor: SilverSize: Outer diameter x Inner diameter x thickness/ 48.8 cm x 42.5 cm x 1 cm/ 19.21 inch x 16.73 inch x 0.39 inchPackage Include: 1pcs x Lazy susan turntable swivel baseAdvantage：Our lazy susan turntable swivel base is made of aluminum alloy material, solid and durable, with good load-bearing capacity, corrosion resistant, and rust-proof.You can remove the rubber feet and fix the turntable with screws. These bearings can be screwed or fixed as they have through holes and pre-drilled holes.