These lessons will support the process of teaching GFR. This is a great solution to reduce knee pain during exercise. GFR knee pads allow your students to focus on their skills. They are easy to clean after the training and do not take up much space when stored, and it is also convenient to take them with you on field trainings. Experience has shown that it lasts at least 7 years under normal operating conditions. It can also be used as a gardening tool, lifeguard training, home maintenance, pet care, house cleaning, prayer and exercise, and more.