Take a Swig and celebrate with your very own 12oz “Birthday Girl” Stemless Wine Cup! Clear Short Acrylic Straw. Vacuum Insulated. Cold up to 9 hours and hot up to 3 hours. 304 Grade - 18/8 Stainless Steel. BPA Free Slide-Closure Lid. Copper Coated Insulation. Sweat Free. Holds 12oz.