Woocoo 4GB USB Flash Drive USB 2.0 Memory Stick Credit Card Size Customized Support Services Ready Customers are welcome to provide us front and back images, with size 1750 x 1150 4GB Memory USB 2.0 USB Flash Drive Credit Card Size Same size as your Credit Card easy to put in your wallet There's a $5 extra charge for each customization purchase, for editing images to fit in the size.