It turns any 10" pot into a steamer so you can easily steam your veggies, fish, etc. and enjoy a healthy meal. Thanks to the ingenious design, you can also use the silicone insert to cook your pasta in a stockpot and then easily strain it by simply lifting the insert out of the pot. When you're done cooking, the dishwasher will take care of the clean-up and you can just collapse the insert for easy, space-efficient storage. Outside dimensions, 12x9.75x5.5" / Cooking dimensions, 10x10x2"