Premium Material: These rotating turntables are made of cold rolled iron, rust-proof and sturdy, offering good tolerance to keep quiet and smooth. Fulfills the supporting function with enough beads inside to flexibly meet the turntable's needs. 【Turntable Bearings】2 mounting plates; one for fixing to a stable surface and the other for rotation. Can be used for organizing rooms and displaying products, perfect for making a rotating workstation, rotating display stand and craft table. Quiet and Smooth: These ball bearings are square shape and round grooves, offering enough beads inside ensure smooth rotation without noise. No dipping, no interference, rotates as you like at the end of time. Widely Used: for assembling furniture, DIY your own home decoration machine and other creative things. Suitable for home, office, factory, etc. For example, as display shelf, TV base, turntable, shoe cabinet, car seat, etc.