The Rizzo Perka 12 oz. mug is every coffee lover's dream and fits in most single serve coffee machines. It comes with a silicone grip and a matching lid making it the perfect mug to take your coffee to go. It's made of a high-end, durable, borosilicate glass and is easy to clean. It has a beautiful look and makes a great gift. A portion of all proceeds is donated to Shelter to Soldier™, a non-profit organization that rescues dogs to train as service animals for veterans in need.