"Silicone Gel Insole Pads: # Relieved your heel pain and alleviate your ankle muscle fatigue. # Relieved plantar fasciitis and reduces heel pain as you walk. # The blue area contains soft gel support for the center of your heel. Provided soft cushioning while. standing or walking, the gel silicone support shock absorbing protection for your heel. # Featured dual density soft gel silicone to prevent heel impact and provide even pressure distribution for better all-day comfort. # Made with medical grade gel silicone, hypoallergenic, non-toxic, non-flammable and odor free. # These heel cups are hypoallergenic, non-toxic, non-flammable and odor free Great for heel ankle pain, plantar fasciitis, heel spur, Knee and back pain etc. # Dual density heel cups providing maximum support and shock absorption Using two levels medical grade silicone Soft and firm Washable and transferable # Will not get warmer than body temperature Blue area is extra soft for greater cushioning of sensitive areas Non-allergenic and dermatologist tested, providing flexibility and conforming to bony parts of the foot Very useful for any prolonged standing or walking activity "