Custom USB Flash Drives, Berwyn Key Shape USB Flash Drive - Stainless Iron, With this Berwyn Key Shape USB Flash Drive flash drive, you can unlock many marketing possibilities. Customers and clients will be reminded of your brand each time they look at their keys. Perfect for realtors, car dealerships, or anyone who carries a key. Material: Stainless iron for silver color, and Aluminium for color. ... #SJUSB0019 $8.16/each.