Description Rust Resistant Stainless Steel - stainless steel construction allows for years of use in tough bathroom elements. pure stainless steel, non-magnetic metal is corrosion free, meaning it will last indoors and outdoors without rust. Plated Plated Rust Resistant - The steel is plated with a rust resistant material and polished with a matte black finish. The hooks look classic, adding a very elegant look to any bathroom. Free sliding action - no snagging; effortlessly; hassle-free. These hooks feature specially designed spherical balls to reduce friction and allow effortless gliding on the rod with virtually no effort from anyone. Heavy Duty Closing Hooks - The hooks are strong enough to hold a heavy shower curtain or liner. They are closed shut, making it impossible for the curtain to slip the rings. Set of 12 - Sold as a set of 12. NOTE: shower curtain rings look quite different with these inexpensive rings. Product Features - Stainless steel - Free from corrosion - Rust-Resistant plated, matte black color - polished for a great look - easy to install - FREE FRICTION, sliding action size:7*4.1*2.2cm package:12pcs shower curtain rings.