Advanced blister care hydrocolloid active gel technology provides instant pain relief and faster healing. Deep cushioning to relieve pressure and prevent painful rubbing. Ultra adhesive and tapered edges so product flexes with movement and stays in place for several days. Translucent edges blend in with the skin. Ideal for hands or feet. Form fitting waterproof and breathable design keeps natural moisture in and germs out for faster natural healing. Individual experience may vary. Within hours a white bubble may appear. This is normal and shows it is working. Medium: 2.6 x 1.6 in. Care to recycle. Product Benefits.