Hello Johninwinky, The overall caddy is rust-proof including the stainless steel shelves. The anodized aluminum pole cannot rust due to its chemical composition. Warm regards, simplehuman
Hello JB, This shower caddy can have the vertical and horizontal positioning of it's shelves adjusted but the main pole is not extendable. Warm regards, simplehuman
Hello tiger, The hook's opening is designed for shower head pipes that approach 3/4" diameter and are at least 3/4" deep. Warm regards, simplehuman
No, it must hang from a shower head. Sorry!