This product is part of a two-piece pouching system designed to open at the bottom when emptying. They are best for colostomies or ileostomies. The integrated Lock 'n Roll closure uses plastic interlocking fasteners to create a secure closure at the bottom of the pouch. The AF300 filter allows for a slow release and deodorization of gas from the pouch. Soft, beige ComfortWear pouch panels help provide comfort.