USB drives (a.k.a flash drives, thumb drives, jump drives, etc) are small. When I saw one of these mini-USB drives, I knew I had to get one. They're smaller primarily because it's just the part that slides into a USB slot and does not have the silly, bulky case that we all know. Today I went to that part of the city that specializes in selling computers and all things related to it.
I bought 3 USB drives (capacity 2 GB each): one for myself, one for my girl, one for my boy. They'll be using these for their school work. The white one has a panda design and the red has an ox design. The bottom picture shows the drive in its "pouch" when not in use. The size is not obvious from the picture so I need to compare it with something else.

The USB drive beside a passport

Compared to a pen