This round red button (5 in. diameter, 1/2 in.
height) at the end of a Magic Arm,
positioned so that Daniel can get his hand on, and off it (note
its
angle under Daniel's left hand).

Jumbo Switch at end of optional Magic Arm
(click pic to see larger image)
Requires switch interface, like our SAM-Trackball, to plug into
a computer.
| H-17 - Jumbo Switch.....$49 | Order |