GelStep Medium Recovery Heel Cup Soft Spur Spot No Cvr Lg Corded Massagers 180 degree * Tension between Mineral oil softens and 180 degree * Tension between the stainless steel arms is controlled by a thumb valve * Each unit has two opposing scales marked in specified increments * Insert adds to the circumference of the garment and runs the full length of the garment * Adds 5 to the shoulder and 2 to the hand Uncovered * Medium (Fits Women 10 5)) * Dual durometer for medial side or spur fascia relief and maximum comfort while standing walking or running *Medium durometer silicone in main body efficiently absorbs impact and recovers quickly *Softer silicone blue zone area provides increased comfort and pain relief *Optional anti microbial cover absorbs odor prevents bacterial growth and allows foot to slide easily into the shoe *Retains shape will not deform or degrade with use *Washable and reusable *1 pair package *Covered Large