Cleaning insures maximum viewing color and clarity by removing accumulated foreing materiasl from video heads, pinch, rollers and capstants. | A VCR should be cleaned after approximately 25 hours of comboned viewing and recording. | Some users find it helpful to clean heads every month of every other month depending on usage | Cleaning after every 25 house of tape use. | New video head cleaner for wet or dry system comes with a cleaning liquid solution included !