I seriously doubt this is stainless steel. Stainless is not even mentioned on the two boxes it came in. Magnets are sticking to it (see picture). But it probably won't rust for a long time. That said, I like this shelf, it has plenty of clearance for the faucet lever. The sprayer may need to be pulled differently because it's just at the same height as the shelf, but I'm not worried about that.