Wellness Slippers, Benefit from a daily massage, as traditional Chinese medicine considers the feet to be a key element of overall health. There are 41 acupuncture points on each foot, these nails will press the foot when walking, stimulate blood circulation and promote metabolism.The design conforms to the ergonomic structure, with magnetic red physiotherapy acupoints, effectively promotes the key acupoints of the feet, relieves pressure and pain, foot massage is one of the best ways to relax.Suggestion: put on thick socks before putting on shoes and leave on for 10 to 20 minutes a day. Great gift for family, friends or yourself.Note: We highly recommend wearing thick socks before putting on shoes to avoid hurting your feet. Of course, wear them according to your personal situation.S: 36-37 yardsM: 38-39 yardsL: 40-41 yardsXL: 42-43 yardsXXL: 44-45 yards