Item Type: Orthopedic Protractor_x000D_ Material: Plastic_x000D_ Description: The range of motion of the fingers and other joints and the curvature of the spine were measured 1Accurate Scale: Can avoid the measurement error as much as possible, so that final measurement results of orthopedic protractor are more accurate. 2Transparent: Allows a clearer view of axle and range of joint. You can place orthopedic protractor directly on the joint or body for easy observation. 3Joint Measuring: Physical joint protractor can be used for finger joint range of motion, spine angle measurement, most suitable for orthopedic use. 4120 Degree Measurement Range: Maximum measurement angle of orthopedic protractor is 120 degrees. Can meet the basic need of joint motion measurement range. 5Wide Application: In addition to the measurement of body joint, can also be used for the production of architectural drawings and level measurement.1 x Orthopedic Protractor