New Safe Material: The wine tumbler glasses is made of Tritan-Plastic material.It is free of BPA or any other bisphenols. It is widely used in the manufacture of baby products, you can use it with confidence Unbreakable Wine Glasses: Tritan - Plastic wine glasses are very clear, look like glass crystals, are lightweight but very strong, almost unbreakable, Do not put in the dishwasher, they will become opaque. Multi-Functional and Durable: This premium wine glass is perfect for everyday and indoor, outdoor gatherings of friends and is built to last. Suitable for cocktails, wine, water and cold drinks. Ideal Gift: These unbreakable wine glasses can be used at home and you can to your friends or colleagues as gifts for Christmas Thanksgiving Birthday Mother's Day, etc. What You Get: Set of 4 premium stemless wine glasses.