Support your healthy lifestyle and experience excellent relief and improvement with the OPPO Medical 6790 Gel Heel Socks. Composed of gel. These Gel Heel Socks come in 1 pair of 2 socks. To use your OPPO Medical 6790 Gel Heel Socks, slip them on to the ankles and put the gel area in the correct position. Remove the product once daily for a few minutes. The OPPO Medical 6790 Gel Heel Socks come in one size. To see if these Gel Heel Socks will fit your foot measure around the ankle bone. The Gel Heel Socks will fit an ankle up to 9 7/8 inches or 25 centimeters. The foot is one of the strong and complex mechanical structures. The foot is composed of skeletons, muscles, ligaments, blood vessels and nerves. With good coordination, these components provide functions like support, shock absorption and movements, enabling people to walk, run, and jump. The foot can be subdivided into four parts, toes, forefoot, arch and heel. There are many factors - flat foot or high arch, wearing shoes that do not fit improper walking posture and over-use of feet which cause foot symptoms like irritation, pain, swelling or deformity of the bone, OPPO helps you identify common foot problems, understand possible causes and find the most suitable foot care products to care for your feet.