Round Paper Clip USB flash drive. This very popular paper clip USB drive is cute, tiny yet powerful flash drive. This Unique round paper clip shaped USB can be conveniently attached to your business cards, printed documents etc. Students will also love this as they can just attached this to their notepads, books and even to their ID cards, so this can be perfect for any school, college, or university promotional program. Size: 3.58 x 2.49 x 0.38 cm.