This Instant pot stainless steel steamer basket with rack is designed for 5, 6 and 8 quart pressure cookers, but it can also fit other pressure cooker models made by other brands. It prepares 1-2 servings of food. It steam cooks foods for the whole family including babies. The diameter of the steamer basket is 8.2″. The height of the steamer is 2.3″. The diameter of the rack is 6.1″. The height of the rack is 2.1″