Camco’s Odor Absorbing Bags helps make any small space smell fresh without the use of fragrances. It is made of 100% Moso bamboo charcoal, a renewable resource, and is reusable for up to two years. Once a month, place the odor absorbing bags in direct sunlight for at least an hour to rejuvenate the bamboo charcoal. Includes (2) 50-gram odor absorber bags.