Microsoft Trackball Explorer 1.0 Mouse USB Compatible - Tested Works Open Box

Microsoft Trackball Explorer 1.0 USB Optical Trackball

Microsoft Trackball Explorer USB Optical Ergonomic Trackball Mouse

Microsoft Trackball Explorer 1.0 Mouse PS2/USB Compatible - Working Condition

Vintage Microspeed FastTrap / IBM Computer Mouse Trackball with disk

* RARE * MicroSpeed - PC-TRAC - Trackball Mouse - Original Box with Instructions

Microsoft D68-00007 Trackball Explorer Mouse

Original INFO Computer Mouse Roller Ball Trackball MUHTB