Visit Amazon.com : http://www.amazon.com/gp/product/B004I0S5S2?tag=thefatkidin06-20
Kensington 64325 - Trackball Expert Mouse ScrollRing Black/Silver
Connectorportinterface - USB
LeftrightHandUse - LeftRight
MouseTechnology - Trackball
Wiredwireless - Wired
