A finger goniometer measures range-of-motion (ROM) of finger joints (metacarpophalangeal and interphalangeal) and other small joints including toes. Unique design allows measurements to be taken by the therapist using only one hand; this frees up the therapist?s other hand to stabilize the patient during measurement or to record the measurement; the standard finger goniometer requires two hands to make a finger ROM measurement. 6? plastic finger goniometer has head with opposing measures 110 flexion through 40 hyper-extension in 5 increments. Linear scale on arm measures in inches and centimeters and has 10cm / 4? scale. Plastic is an opaque black with easy-to-read white markings. Plastic - 1-finger Design - 6 inch