Containing 50x more air freshening than standard rimsticks, the Eco Clip gradually releases air freshener over 30 days. The clip works on the outside of bowls, (where the seat goes down and stays down), the tops of restroom partitions, or the side of tanks to combat odors and create freshness. The clip is secures in place and shrinks to fit as fragrance evaporates, so it doesn’t move after placement.