DUAL DENSITY HEEL CUPS, SMALL/ MEDIUM LADIES, SOLD AS EACH MEDI-DYNE 10000810Dual Density Heel Cups, Small Medium Ladies, Sold As Each Medi Dyne 10000810 Medi Dyne Polar Bears Dual Density Heel Cups Medi Dyne Polar Bears Dual Density Heel Cups Developed For The True Heel Spur Sufferer. The Strategically Placed Blue Shock Absorbing Waffles Inside A Ring Of Soft Tuligel Acts As A Cradle, Babying Your Heel, While It Distributes Pressure To The Outer Edges Of Your Heel Away From The Injured Area. Lifetime Warranty. Dual Density