This stemless wine cup / stemless wine glass is one functional and stylish drinkware item. Double-wall stainless steel and vacuum insulation keeps drinks hot for up to 5 hours and cold for up to 15 hours, making it a versatile drinkware option. Select from a variety of vibrant wine cups to pair with a clear plastic snap-on lid. Customize with a 1-color silkscreen imprint. CA Prop 65 compliant. BPA free.