1.Sold as a pair of 2 insoles (one left and one right) - Universal size fits most adults; men's and women's US shoe size 5+. They are 4" long and 1.5" wide and are not full size insoles. 2. Ideal for all day use for standing, walking, running, etc. for peroneal tendon inflammation, genu valgus (knee) or varus (bow leg), arthritis, hyperpronation (rolling the foot inward) , excessive supination (rolling the foot outward), and uneven foot alignment. 3. One edge of each insert is raised to provide a 4 degree medical lift for ankle varus or valgus, and to treat flat feet, plantar fasciitis, Achilles tendonitis, stress fractures, shin splints, squeeze Pinched nerves, heel spurs, heel pad syndrome, and heel bursitis. 4. Posture Correction, Ankle Roll Guard is made of soft, sticky silicone-like material that fits comfortably against the skin and is easy to clean with warm water and soap, or use a damp tissue to restore its sticky outer surface. 5.Unloading gel insoles have a self-adhesive backing so they will stay in place while allowing repositioning inside your sports tennis and dress shoes or boots for foot, ankle, knee, hip and waist relief (Sacroiliac joint) pain.