Ultra-fine microfibre cloth for cleaning pianos and for use on other smooth and shiny interior surfaces. The cloth can be used dry or damp. In the latter case, just dampen it with water and then squeeze any excess out. With a slightly damp cloth it is possible to remove smaller marks such as fingerprints. Always test on a small inconspicuous area before use. We assume no liability for any scratches that might be incurred. Please take care to only ever use a very clean cloth. Product is machin...