100% SAFE, FOOD-GRADE SILICONE: Silipint products are safe and built to last! They are made of 100% food-grade, platinum-cured silicone that is free of BPS, odors, and phthalates. They are dishwasher safe, freezer friendly, and microwave safe. They will not break, crack, chip, dent, fade, or scratch. Silipint's unbreakable cups are thick and sturdy, with an easy-to-grip outer surface and a nonslip bottom for extra safety. Holds 16 ounces.