Honey-Can-Do HNGZ01882 36-Pack Cedar Rings, Natural Cedar. Made from 100 percent cedar, these rings are eco friendly and provide a fresh, natural scent. The rings slip easily over the hooks of existing hangers and help deter pests, mildew and odors. They can also be placed in drawers, luggage or storage boxes. Cedar absorbs moisture and unpleasant odors while releasing a fresh outdoor scent.