Brand from South Korea: MONSTER FACTORY. Benefits:This waterproof band helps to protect your ankle from being injured by shoes.Also acts as a wound dressing to cover wounds on the ankles.A thick but transparent patch that is unnoticeable yet more protective than normal wound dressing.Tightly adheres to your skin and absorbs wound secretions.How to use:Remove the film and stick the patch on your ankles. Change the patch when the patch turns white or is no longer sticky.