Premium Quality - Set of 20 muffin cups are made of food grade silicone, is more flexible and durable. Heat resistant up to 446F, Dishwasher, Oven, Microwave, Freezer Safe. Multipurpose Versatility - Silicone muffin cupcake molds, great for cooking eggs, baking muffins, cupcakes and breads, frozen treats, candy making. Perfect holder for sorting small items. Fun for a birthday or holiday party, baby shower, or wedding Multiple Shapes & Colorful - Heart, round, Also you can make multiple shapes' cupcakes to better satisfy kids taste bud. Easy to Use - You simply have to place the cup on the cookie sheet, fill and bake. Or place them directly on a regular cookie sheet. With our pan, there is no need for sticky cooking spray or messy wrappers - just pop them and they are ready to go. Easy to Clean - Silicone bakeware is much easier to clean than traditional metal or aluminum bakeware. The non stick qualities of silicone will make cleanup a breeze, no more scrubbing for hours.