Polycarbonate Martini Glasses, 10oz, Set of (4) CRYSTAL CLEAR - Made of High Quality BPA Free Polycarbonate Great for PARTIES, OUTDOORS, and around the POOL! Extremely DURABLE and SHATTERPROOF compared to traditional glass Top-rack DISHWASHER SAFE Resists Cracking, Clouding and Crazing. These pieces offer glass like Beauty and long lasting worry free Strength.