Hey DIYers and home organizers, these SEHOI lazy susan bearings are absolute workhorses! Each 9-inch plate is built from thick cold-rolled steel with a rust-resistant black coating, and they can handle a massive 220 pounds each - that's serious weight for rotating displays, tabletops, or even TVs. The smooth 360-degree rotation comes from stainless steel ball bearings inside that operate quietly without any annoying grinding sounds. Installation is super straightforward with pre-punched screw holes around the edges - just line them up with your surface, screw them in (screws not included, FYI), and you're done. These aren't just for lazy susans either - use them for makeup organizers, display stands, workshop tables, or anywhere you need something to spin smoothly. The 4-pack means you can tackle multiple projects at once or have spares for future ideas. Seriously, if you're tired of struggling with wobbly turntables that can't handle weight, these industrial-strength bearings will change your organization game completely. They're the kind of hardware that just works and keeps working year after year.