1Pure brass is handcrafted without any plating on the surface to preserve the original quality of brass. 2Because of the characteristics of copper, with the use of time, in its surface will gradually oxidize, the formation of a unique retro charm, worth careful play. 3With the passage of time, copper products, color and lustre will occur natural oxidation, color will be from white to yellow to red to black, will slowly precipitate a unique retro color and texture, this is the charm of copper itself. 4Can store pills, coins, tea-leaves, jewelry and other small items. 53 kinds of sizes to choose from, provide more choice for you.