This discreet and secure solid air freshener clips to the side of any toilet to freshen the air and combat odors for 30 continuous days. F-Matic toilet bowl clips comply with VOC requirements in all 50 States, North America, and Europe and the spent clip is 100 percent recyclable. It's simple to use and a great low-cost option for smaller restrooms. Its versatility lets it adapt to use on the outside of the bowl, on the side of the tank, or even on top of the Partition. Available in eight fresh fragrances to match our most popular Passive air fresheners for a cohesive scent experience in your restroom.