Scholl Party Feet Ultra Slim Invisible Gel Cushions with adhesive technology are thinner for comfort and help reduce the burning feeling in the balls of your feet and provide excellent cushioningScholl Party Feet Ultra Slim Invisible Gel Cushions with adhesive technology are thinner for comfort and help reduce the burning feeling in the balls of your feet and provide excellent cushioning. Scholl Party Feet uses GelActiv Technology and has a clear gel, slim and discreet design. Party Feet ball of foot cushions fit comfortably into most women’s shoes