This Star Trek Classic 12 oz. Double Wall Ceramic Mug is just about the best thing ever for fans of Star Trek. Whether it's The Original Series, Next Generation, Voyager, or any other Star Trek series, no fan will want to go without this fantastic travel mug. Featuring a sleek blue overall design with the unmistakable Star Trek Command Division insignia from the classic TV series, the double wall design of this great travel mug helps keep your drink insulated. Plus, a convenient soft silicone lid helps keep you from spilling! Dishwasher safe.