DataThe silver is treated with a chrome plating, then brushed -- extremely durable, wont scratch or chip. The black is treated with black oxide, which can last a long time with the proper care, but is more susceptible to mild wear if you drop it or rub it on hard against hard/sharp surface (wouldn't recommend tossing the pen in the same bag as your keys etc). We have pen sleeves designed for each pen size available on our website.