Experience the magic of our Glow In The Dark 40 oz. tumbler! The all-new Mammoth Ascent engineered to keep beverages cold 36+ hours or hot for 12+ hours. It boasts an array of standout features including a durable powder coat finish, easy-grip handle for secure holding, a 0.6 mm thick 18/8 kitchen-grade stainless steel construction that resists dents, double wall vacuum insulation, and a flip up sipper spout that includes internal straw. Laser engraved. Packaged in a retail box.