This steamer ring enables the 10" steamer to be used on most of the deep sauce/soup pan. It works well for most types of cooking (such as vegetables, fish, dumplings, ...). It is a good piece of tool but further improvement is suggesed here. a) It is stated to be used for 10" steamer set but the inner ring size is only 7". To maximize the power of the steam, 8.5" or 9" inner right size is suggested; b) It will be desirable to create a 1/2 inch deep, 10" shoulder ring so the steamer set can sit tight on the ring; c) It will also be preferrable to increase the outter ring size for another inch so that the wet towel can be used to seal the bottom of the steamer set to prevent steam from escaping.