Leaves a lustrous, lasting, protective film on all metal, wood and plastic surfaces. The double-napped, 100% cotton flannel cloth is impregnated with pure silicone and then packaged in a convenient re-closable poly bag, staying clean and moist after use. Use on firearms, sporting equipment and precision instruments to safely remove dust and corrosive fingerprints. Key Features Leaves a lustrous, lasting, protective film on all metal, wood and plastic surfaces 100% cotton flannel cloth is impregnated with pure silicone Use on firearms, sporting equipment and precision instruments