This cools your laptop, preventing it from over-heating and freezing (well... duh!)
This is the larger model of the awesome Belkin Laptop Cooling Platform With USB Powered Fan.
A few people complained that large laptops (screen size greater than 15")did not benefit much from that fan. This one also has a usb powered fan but also a 4 port usb hub so you don't lose any USB ports! =)
The item is cheaper in 3 other places (lowest=£14) however, inc. VAT, Shipping they are much more expensive. The discount vouchers will reduce the price of this item slightly as well.