Silicone Valley Silicone Wine Glasses 12 ounce, Set of 2 GORILLA TOUGH!!- Tough unbreakable silicone 12 oz drinking cups lightweight and durable. Drop, step on, freeze, bake, fold, sit on, do what ever you like the GORILLA CUPS always bounce back. These are not your mothers crystal!! ECO-FRIENDLY- GORILLA CUPS are re-usable and an environmentally sound alternative to plastic and styrofoam cups. Save money while helping the environment! BPA FREE FDA APPROVED FOOD-GRADE SILICONE- Freezable, as well as heat resistant with a temperature range of -46F to 460F (-40C to 230C) won't melt or crack. GORILLA CUPS are TOUGH!! ON THE GO- Silicone GORILLA CUPS are packaged in a velvet draw string carry bag for easy transport where ever you go! Pool parties, barbecues, camping trips, picnics, a day at the beach, tailgating, hiking, or in the RV. DISHWASHER AND MICROWAVE SAFE- Never worry about spots, scratches, chips, or cracks. Simply toss in the dishwasher and walk away. Have some coffee, tea, or even soup you enjoy warm, just pop GORILLA CUPS right in the microwave.