Neutralize odors in your trash can with this easy-to-use starter pack. Simply attach the grey pod holder under the lid of your simplehuman trash can (sold separately) using the adhesive strip and slide in an odorsorb pod. Made with a microporous membrane and natural plant-based oils, the pod consistently neutralizes odors for 45 days. When it's time for a replacement, the pods swap out easily. This starter pack includes one holder and two odorsorb pods.