This is a silicone steamer that can be used in a microwave. I used it for a while, but it has been stored on a shelf unused. It comes with an instruction manual, which includes a few recipes that can be made with the steamer, making it convenient. There are some faint stains on the lid, but it can still be used. I have washed it before listing it. ★This is a home-stored item, so please purchase with an understanding of used goods.