Cedar America Natural Aromatic Cedar Wood Hanger Rings, 2-Pack (40 Rings) NATURAL CEDAR: 100% natural cedar ring, which fits over the hook for safe natural freshness VERSATILE AND RESOURCEFUL: Natural cedar freshens and repels pests and staleness ECO-FRIENDLY: Renewable and chemical free DELICATE TO FABRICS: They have a smooth surface that doesn't snag delicate fabrics COMPATIBLE TO MOST HANGERS: Fits over most plastic and wire hangers