The MusicNomad Key ONE is an all-purpose cleaner for keyboards, piano keys, digital pianos, and matte finish pianos. It safely removes fingerprints, dust, and grime while leaving no residue or streaks. Its anti-static formula helps reduce dust re-accumulation, making it ideal for regular maintenance at home, in the studio, or on the road. The compact 4 oz spray bottle allows for easy use and portability.