Specifications: Material: 100% Pure Copper, Weight:- 158 gm, Capacity: 400 ml, Height: 12 CM, Width: 9 CM Highly Recommended for any age I You don't need to clean it from outside it will be nice and shiny always and it will enhance your home decor Copper Produce Anti-Oxidants in water if kept over night, its really good for stomach and digestion Copper Water can help you loose weight if its consumed for a longer duration Use pitambri powder to clean copper utensils and wipe with soft cotton cloth or Use salt and lemon (Natural Cleanser) to clean it