Kolstein's Instrument-All Clean and Polish Kit offers the musician a revolutionary concept in the total care of all string instruments and their accessories. The Kolstein Cleaner removes stubborn dirt and rosin build up without disturbing the finest instrument varnish or other finishes. The cleaner contains preservative oil that is excellent for ebony and rosewood fingerboards and other exotic woods. It also helps to blend in minor gouges and scratches with the original finish. The Kolstein Polish is made in the United States and will restore the full natural luster of the finest finishes acted upon by time and usage. This kit also contains two Kolstein Polishing Clothes that will keep the instrument clean and retard the build-up of dirt and rosin.