Baseline 360 degree clear plastic goniometer joint angle and range of motion measurer

Transparent plastic finger goniometer permits observation of joint?s axis of motion, and its range of motion. The head has three scales ranging from 30hyperextensions through 120 flexion calibrated to be used with the ISOM (International Standards of Measurement, STFR) system. Arm has a linear scale in inches and centimeters and remains at measurement position until reset. Angle scale reads 1 increments. Finger - Flexion to Hyper-Extension, 25-pack