With the Formula No. 65 Polish, you can clean the body and the back of the neck of your guitar. Rub the product in with the supplied cloth and youll notice that minor scratches on the finish will disappear. The Formula No. 65 Polish leaves a thin layer that protects your instrument from staining and moisture damage.Dunlops Fretboard 65 Ultimate Lemon Oil is one of the most well-known guitar care products on the market. You can use it as a cleaner and conditioner for the fretboard of your guitar (dont use on maple fretboards). Apply the Lemon Oil with the handy applicator on the bottle, let it absorb for a while and then rub the fretboard with the cloth. This prevents the fretboard wood from drying out.You can use the Dunlop 6503 Body & Fingerboard Care Kit on all kinds of instruments: acoustic or electric guitars, bass guitars, mandolins... Take care of your gear!