Straight Glass Straw Set of 5! Choose From 12mm or 9mm (9) WE GIVE YOU FIVE STRAWS FOR THE PRICE OF 4! Choose from 9 inch glass straws with 9mm opening for regular drinks or 12 mm opening for thicker drinks like shakes or smoothies. All are 2mm THICK WALLED GLASS. The 9mm fits all the to-go cups, the 12 mm is for thicker, chunkier drinks and all are 9 inches long. Perfect for both hot and cold drinks and because it is made from heavy duty BOROSILICATE GLASS (the same one Pyrex glass is made from) it can go from very hot boiling water to very cold iced tea without breaking. This is the same material used in laboratories for beakers and test tubes so it will withstand all temperatures. Eco-friendly, BPA free, non-toxic glass PROTECTS YOU FROM TOXINS - Plastics contain BPA which is linked to several health risks and disease. Use glass to be safe! Reusable, dishwasher-safe and durable borosilicate straws plus a nylon cleaning brush in each gift box. KEEPS OUR ENVIRONMENT CLEAN- Plastic straws are not biodegradable or even reusable. We throw out millions of straws each year with no hope of recycling. Be part of the solution and carry some in your car to use when eating on the road!