Hagerty Silver Duster Two Piece Cloth with R-22. A two-piece polishing cloth developed to easily remove light tarnish from silver. A convenient method for dusting your sterling silver ornaments regularly. Contains R-22, the world's longest lasting, patented tarnish preventive agent. The inner cloth maintains the patina and imparts a tarnish-proof barrier on silver to preserve its brilliant glow for months. The outer cloth buffs silver to a brilliant shine.