A temperature controlled wine glass! Keep your wine at the perfect temperature for a great price for your next wine or beverage related promotion. It maintains the current temperature, so although it is shaped for wine, it can be used for 12 ounces of just about any beverage. They're shatterproof, easily transportable, chillable, rustproof and recyclable making them more durable and safer than glass. These premium, stainless steel tumblers are BPA free and feature a Safety-Sip, clear lid made from BPA free Tritan Plastic.