Standard Features: Pneumatically driven, moveable platform Control knob operation Five independent spline-shaft fingers with support rest 9-piece weight set (2N, 3N, 4.5N, 5N, 6N, 7N, 10N, 15N, 20N) “Gripping” spring clamp specimen hold-down Replaceable specimen platform protective guard Electronic timer accurate to 1/100 second Air regulator control with built-in lubricator