Use a sim card trick for free delivery, collect it from store, otherwise delivery is £4.85
The Targus Wired Mini Optical Mouse features the latest optical technology including 800-dpi high resolution for precision and accuracy. This mouse is perfect for the road warrior who needs to save space. Using the "Screen-Scroller" wheel, you can scroll up, down, left or right and alternate between open applications. This optical mouse comes with a standard USB connection for true "plug and play" functionality. On the plane or in the office, this is the perfect mouse.
* Dimensions (WxDxH) / Weight : 5 cm x 9 cm x 4 cm / 60 g
* Movement Resolution : 800 dpi
* Features : Scrolling wheel
* Cables Included : 1 x USB cable - integrated - 1.5 m
* Manufacturer Warranty : 2 years warranty
Description taken from: http://www.dell.co.uk