This is an interesting idea that doesn't really have much use in the real world. It's decently made, but you really have to use a plastic container with it, and the grate is awkward no matter what surface you use. For larger jobs I recommend a regular grater: https://smile.amazon.com/Stainless-Parmesan-Vegetables-Spring-Chef/dp/B011B8M2GO/ref=sr_1_5?ie=UTF8&qid=1504634788&sr=8-5&keywords=box+ grater and small hand grater for Parmesan on pasta and the like.
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