These Zenna Home Aluminum Double Roller Shower Hooks provide a rustproof way to allow both a shower curtain and a shower liner to be easily added, replaced or removed from any shower rod. These rustproof hooks have an innovative roller mechanism that allows them to glide easily over any shower rod. The hooks come in a package of 12 to match the number of holes on standard shower curtains and liners. The rich nickel finish will complement many bath decor and hardware styles.