Hanging things inside the sink is an interesting idea, and this hook is very attractive and a good match for a stainless steel sink. However, it's meant to be installed before the sink itself is installed, using a backing strip to be taped on the outside of the sink. If you can squeeze under the kitchen counter and get it done, you can attach it to a sink that is already installed, but it's awkward. The magnets are strong, and it beats hanging things over the faucet to drain.