Full Details from Amazon.com : http://www.amazon.com/gp/product/B003DKJ44C?tag=onigi-20
Mad Catz R.A.T. 5 Professional Gaming Mouse for PC and MAC
Step up to the flexibility of the RAT 5 and come hunt with the big boys
Customize your RAT to create a truly unique experience with a mouse that transforms and adapts to suit your needs