* We bought this mug for the birthday of a friend photo enthusiast and coffee. * The reproduction of a camera lens is so true that he believed there for several seconds. * Obviously, the lightweight of the mug was the developer .... But the surprise was pleasant. * The soft plastic outer surface helps keep the mug that the liquid is hot (coffee, tea). * The surface is cleaned thoroughly (test with a sponge only, no passage made machine.) * The cover is not fixed (it is the only "defect"), does not therefore use the mug as a transportable container in an insulated backpack ... But this is not its function. *** An original gift, the price is not excessive and gives the drinker smile .... Is not the purpose of a gift?