This is a set of 4 acrylic zombie cups from destination psp features our original mid-century inspired atomic design and each holds 15 oz. These are also known as tom collins drinkware. This unique acrylic drink-ware is bpa free and dishwasher safe, but hand washing is recommended for durability. Imported. These are made of acrylic. We do feature the same designs on old fashioned, beer, shot and wine glasses - made of glassware.