Fits ROUND pipe and pipe diameter is 15-30mm / 0.59-1.18" inch ; package included 1pc.Made by heavy duty stainless steel,durable,easy to clean. Feature: installed on the kitchen sink or bathroom faucet,space-saving,makes kitchen clean and tidy; Open drain holes design,holds sponge,cloth,scrubbers,soap and so on.keep them dry and clean;