Mastrad A68900 Silicone Square Steam Cooker, Black Square silicone steamer for both microwave and oven use Made from 100% pure premium silicone, food retains essential vitamins and minerals lost with other cooking methods Heat safe to 430 degrees fahrenheit, can be used in both oven and micowave; food is steamed in own juices, no additional fats needed; dishwasher safe Includes recipe booklet 9-1/2 inches by 7-3/4 inches by 3-1/2 inches; 5 year warranty