Purpose of Use: 1-It helps treat general knee pain such as tendonitis, chondromalacia and arthritis. 2-It supports the kneecap by grasping the knee. 3-Easily used under clothing. WARNINGS 1-It should not be used by people using pacemakers, automatic defibrillators or insulin pumps. 2-Pregnant women should not use it. 3-Do not use on open wounds. 4-Those who have metal nail platinum prostheses inside their bodies should use them under the supervision of a doctor. MEASUREMENT METHOD: IT IS FOUND BY MEASURING THE CIRCUMFERENCE BELOW THE KNEE..