The caped crusader wouldnt have just any old mug and neither should you the batman mug glows in the dark alerting you to your hot beverage even in the darkest of night featuring a glow in the dark batman logo the black mug acts as the perfect backdrop to the glowing symbol that draws you to your drink in the dark perfect for night time missions of the thirsty kindr r batman logo mugglow in the dark batman logostandard sized 200ml capacitystonewareplease allow exposure to light for up to 5