OGH SSL Silicone Stretch Lids, 13, Yellow FOOD-GRADE MATERIAL:Our silicone baking cups are made of 100% BPA Free food grade silicone.FDA approved,eco-friendly,safety nonporous and stain proof silicone. HEAT RESISTANT:Durable-Safe to use in oven, microwave oven, freezer- Easy to clean and dishwasher safe. COUNTLESS USES:Can be used for not only cupcakes but muffins, gelatin, and frozen desserts ETC. REUSABLE:Our easy-release, non-stick cupcake liners are reusable.Never have to use environmentally damaging paper cups ever again! BRIGHT COLORS:This Set includes 4 bright colors: Pink, Red, Blue and Green - There are 12 cups,three in each of the four colors.