Have a shot in the dark with our 2 oz. tapered style glowing shot glass! This shooter is a cost-effective way to sell your image with your shots. The perfect promotional product for restaurants, bars, and nightclubs. Also great for entertaining guests at weddings, parties and other functions. PLEASE NOTE: Glow Items by Nature are a One Time Use Item! Glow lasts up to 6 hours and will only glow once. Patent #6,676,269. Order in increments of 1 piece.