1.RUST PROOF SHOWER CURTAIN HOOKS: Double-sided shower curtain hooks are made of selected metal, plated and polished, rustproof, corrosion-resistant and durable. The thickened diameter gives the shower curtain ring a good weight-bearing capacity for hanging a variety of heavy shower curtains or kitchen utensils. 2.UNIQUE DESIGN: Our shower curtain rings are designed with stepped double hooks to balance different weights of shower curtains and liners, avoiding slipping like other shower curtain hooks and helping to hide the shower curtain liner. 3.SMOOTH SLIDING ROLLER BALLS: These black shower curtain hooks have 8 alloy roller balls on the top to ensure that the shower curtain rings slide quickly and smoothly without snagging or pulling. Reduce friction and avoid scratching the shower curtain rod. 4.EASY TO INSTALL SHOWER HOOKS: The double hook shower curtian hooks do not need to be closed or opened and can be hung directly from the shower curtain rod. Friendly to people with weak hands, the shower curtain can be installed or removed quickly. These metal shower curtain hooks have a beautiful finish that perfectly matches vintage or modern style bathrooms.