wooow, thats a solid piece of hardware

"The core of the Level 10 M mouse is hollowed out, allowing you to adjust its height, angle, size, and even shape. An array of hexagonal cutouts adds some extra flair while also facilitating better airflow under the palm."
147 x 67,5 x 38,8 mm
upto 8200dpi
5 additional mouse buttons
128kb intern cache

more at http://mmouse.ttesports.com/