Ernie Ball 4279 Wonder Wipes 6-Pack Combo Pack of Guitar Care Wipes The Ernie Ball Wonder Wipe Variety 6-pack includes 6 individually wrapped Wonder Wipes. 1 Fretboard Conditioner, 2 Instrument Polish and 3 String Cleaner. Fretboard Conditioner This is made with a unique blend of orange, jojoba and linseed oils that eliminate dirt and grime off your fretboard in one easy swipe. Instrument Polish This chemically engineered formula eliminates unwanted haze and streak marks while preserving your instrument's original appeal. String Cleaner This lubricating formula eliminates acid, dirt, and grime while maximizing the life and tone of your strings.