This clear goniometer plastic enables the observation of the axis of motion of the joint and its range of motion. The primary aim of this medical goniometer plastic is to aid in physical therapy by calculating the range of joint motion, as well as by monitoring and measuring healing after surgery or physical therapy. When the patient has a limited range of action, the therapist will test the joint before initiating an operation and will continue to use the method to ensure that improvement is achieved. These ranges of motion measurements can be taken at any joint and usually require some understanding of the anatomy of the body, in particular bony landmarks. This hospital goniometer plastic is a practical, clinical tool that enables quantitative assessments to be carried out in order to monitor the success of the recovery program.