Designed to release your foot/ heel pain & tension due to arthritis, neuropathy, and plantar fasciitis. Promotes better blood flow to enhance overall health, Great healthcare gift for your family, and friends; is made of artificial PU sole and EVA materials, they are non-slip and safe to wear, an exceedingly innovative alternative to the traditional reflexology sandals, enjoy a professional foot massage by simple walking. You may feel pain for the first several times use if you have a tight foot, adding socks and shortening the wearing time will help you feel better; you may feel a little uncomfortable or painful during the first few usages, but you can wear socks, and shorten the time usage to help your feet adjust. Considerable strap design to adjust the width of the slipper designed to soothe foot/ heel pain & tension due to arthritis, neuropathy, and plantar fasciitis. Promotes better blood flow to enhance overall health. This is therapy massage slippers for 15 minutes per time NOT all-day wear casual slippers. It hurts for first few times, but adding socks and shortening the wearing time will help you feel better. All materials conform to environmental requirements. 100% QC checked before packaging. Considerable strap design to adjust the slipper widthYou may feel a little uncomfortable or in pain during the first few usages, wear socks and shorten the time usage to help your feet adjust. The pain indicates that the product works, you will get used to it and start to crave it because it hurts so good! Our acupuncture slippers come with effortless-to-adjust velcro straps. You can alter the width of our foot massager for plantar fasciitis to ensure they fit comfortably on your feet.