This is my formal announcement of my membership to the Cocktail Club. Yes, I picked out this oh-so-fancy Moscow Mule Mug for the occasion! Double-walled, vacuum-sealed and copper-plated design as well as triple insulated technology lines the wine cooler, keeping drinks cold up to 9 hours, and hot up to 3 hours. This 14 oz wine cooler features a convenient handle and is hand wash only. This cooler is slip-free, scratch-free, and noise-free. BPA-free lid is included with a removable slider for cleaning.