These silicone straws are 100% European grade silicone. BPA free, dishwasher and microwave safe, they can even be boiled to sterilize. With more awareness towards excessive plastic waste and the hazardous environmental impact, people are seeking alternatives which are better for all. The soft nature of silicone make these straws much safer to use then the rigid plastic and steel alternatives. Perfect for any size cup. Comes in pack of 6 with three different sizes. Straws are 5 1/2", 6 1/2" and 8" in length with and opening of .5cm. Easy to use and keep clean.