EVALUATE RANGE OF MOTION: complete set of goniometers is everything you need to evaluate range of motion. Ideal for physical therapists, home use, and students who want quality professional materials and effective results. Our Goniometers offer 360 degreesof coverage in 1-degree increments to ensure ISOM (International Standards of Measurement) accuracy. Easily track progress without breaking the bank with our high quality professional USER FRIENDLY GONIOMETER SET: The clear plastic permits observation of the joint's axis of motion and range of motion. Lay the device directly on a limb or joint to make an observation. Measurements in inches and centimeters are on the arms of the andare easy to read. FOR STUDENTS + PROFESSIONALS: This is a wonderful set for Current Professionals or Physical/Occupational Therapy students. It is easy to carry around and can be used for a wide variety of patients needs. If you're at home recovering from surgery, thisis also a convenient set to track your progress and mobility.