All in 1 Cleaner, Polish, Wax for Gloss Finishes. The Guitar ONE is infused with white Brazilian carnauba wax that delivers an acoustically transparent durable shield with a high gloss shine that protects your instrument's finish. Safe on all lacquer finishe,  including nitrocellulose. Not recommended for matte finishes. Musicians, repair shops, guitar techs, instrument makers, and collectors around the world use our most popular guitar care polish, The Guitar ONE.