Super Pint is an unbreakable pint glass made of 100% FDA Approved Food Grade Silicone. You can bounce it, freeze it, bake it, nuke it and nothing will harm or hurt the Super Pint. It is literally the only pint glass you will ever need. No more broken glass! Kid safe, dishwasher safe and BPA Free. Also, the Super Pint insulates your beverage better than glass so it will keep your favorite drink icy cold.