Jogensko Goniometer is used to effectively to measure joint range of motion, such as hip, elbow, shoulder or knee Joints. As a gift for therapist, orthopedic clinics, or for people who were suffering from hip/elbow/knee/shoulder surgery recovery, to accurately track their progress of the whole rehabilitation program at home. The therapist can take these range of motion measurements at any joint. Package include：1 piece of Goniometer Size: large size of 12 inches Ruler Scale: Inch/cm on both arms Accuracy: 1 degree increments ISOM Material: Clear Plastic, rigid and flex Especially helpful in your overall rehab program and assessment in: Knee replacement surgeries ACL replacement and meniscus repair surgery