Approx £8.19 - inc delivery.
I've used this company for a few years now, very reliable.
Plastic Body with Steel Swivel Lid in a Very Compact Size
Full Compatibility with USB 1.1 and 2.0
Supports 12Mbps full-speed transfer
Dual Channel Flash Memory Architecture
Hot Plug and Play - Insert and Function Like Another Hard Drive
Supports Auto Run (Upon Special Request) - Insert and Auto Play like CD-ROM
Supports Password Protection
No Driver Needed for Most Windows O.S.
More Than 10 Years Data Retention
Dual LED Indicates Power On, Data Transfer, Busy
Capacity: 4 GB
Dimension: 57 x 19 x 11 mm