The Trick Ultimate Instrument Care Kit contains 25 - 10" x 12" premoistened Ultimate Carnauba Wipes and a polishing cloth. The wipes are the easiest, fastest, and most convenient way to keep instruments looking like new. They work on any instrument finish and won"t scratch, streak, or swirl as they remove fingerprints and smoke, dust, and sweat residues. The polishing cloth will not scratch even the most delicate finishes and its 100,000 microfiber strands per square inch grab, lift, and hold grime like a magnet.