Get the proper measurements needed by using the Baseline Joint Goniometer. This device is able to measure the joint s axis of motion as well as its range of motion. The 360-degree goniometer features a head that has three scales calibrated to be used with the ISOM (International Standards of Measurement STFR) system. The arm has a linear scale in inches and centimeters and remains at measurement position until reset. The plastic goniometer has an angle scale that reads in 1-degree increments. This piece of equipment will come in handy at a doctor s office or in a physical rehab facility. The Baseline Joint Goniometer is made of a sturdy durable plastic that is also see through.