This is the Stretch-Ball, a PS/2 Trackball controller. This controller is adjustable for various hand sizes. It has been tested and works fine. It comes as shown, with Trackball itself, box, driver floppy (floppy untested), PS/2 to Serial Adapter, and reference card.
Accepted payment methods are:
Money Orders and Cashier's Checks
Personal Checks (expect a hold of up to 10 business days for clearing)