Anti-Fatigue Molded Heel Cup Unisex Size Men 2 to 4 Women 4 to 6 Length 5 In. Width 4 In. Thickness 5/16 In. Visco-Elastic Polymer Fabric Cover Blue Features Hygienic Moisture Absorbent Wear Resistant Removable Plug Under Heel Natural Surface Tackiness Prevents Fatigue Foot Odor Pain in the Lower Back Legs and Feet 1 Pair