Baseline 12-1012-25 Finger Flexion to Hyper-Extension Plastic Goniometer - Pack of 25 Transparent plastic finger goniometer permits observation of joint's axis of motion, and its range of motion. The head has three scales ranging from 30 hyperextensions through 120 flexion calibrated to be used with the ISOM system. Arm has a linear scale in inches and centimeters and remains at measurement position until reset. Angle scale reads 1 increments. Features Finger Flexion to Hyper-Extension Plastic Goniometer Pack of 25 Specifications Weight: 1 lbs