Hulless Shower Curtain Rings Metal Roller Shower Curtain Hooks Double Roller Glide Set of 12. DESIGN: The Double Roller Glide Shower Curtain Hooks separately hang the shower curtain and shower liner. RUST RESISTANT: Made of durable, rust resistant metal. FRICTION FREE: These shower curtain hooks will quietly glide across the curtain rod. SET OF 12 SHOWER HOOKS: Sold in sets of 12 for standard shower curtain installation. 100% Money Back Guarantee: Any quality question, just feel free to contact us, We will reply within 24 hours to resolve.