Non-slip: the enlarged and widened surround fixing and the strong adhesive Velcro design are not easy to fall during sports.IMPROVED MAGNETIC THERAPY: Built-in heating pad with 8 deep sea magnets. The magnetic field affects the current distribution of the human body. The magnetic moment orientation of biopolymers creates an acupuncture-like effect. Self-heating promotes blood circulation, repels cold and relieves pain.Wide range of applications: suitable for old cold legs, cold and aching knees, joint care, stiffness and numbness, sports sprains, bruises.WARMTH AND COMFORT: Selected SBR fabrics, heat retention and warmth, comfortable and breathable to wear, do not affect squat exercises.PERFECT GIFT: The heated knee brace is the perfect gift for grandparents, parents, friends, lovers and yourself It is also one of the best choices for ChristmasProducts from GuanGuan's store