Leblanc Professional Nickel-Finish Polishing Cloth A soft flannel cloth specially treated with both a polish for a bright gleaming shine and a corrosion inhibitor to protect the surface and prolong the shine The LeBlanc Professional Nickel-Finish Polishing Cloth is made of soft flannel specially treated with both a polish for a bright gleaming shine and a corrosion inhibitor to protect the surface and prolong the shine of your musical instrument The LeBlanc Professional Nickel-Finish Polishing Cloth is made of soft flannel specially treated with both a polish for a bright gleaming shine and a corrosion inhibitor to protect the surface and prolong the shine of your musical instrument