This 12 gauge shotshell travel mug by River's Edge Products is the ideal vessel for all your hot and cold beverages. Made of durable stainless steel, this tumbler is also double-walled and vacuum insulated, keeping your coffee, water, and other drinks at the right temperature for longer. The mug has an easy to clean lid with a sliding opening, making it virtually spill proof and easy to drink from when you are on the go. It will fit in most car cup holders as well as under most single-serve brewers for added convenience. It has a 18 ounce capacity. Cleaning the mug is a breeze and it is top-rack dishwasher safe