Eliminates 99% splashback. Special, innovative design reduces splashing, supported by a network of posts that protect the drain and guarantees that the user installs it correctly each and every time.  Unique design eliminates installation error and installs both ways without sacrificing splash reducing performance.  It releases beneficial bacteria that help control odors and assist in keeping pipes clean. More than twice the fragrance as our old screen and other competing urinal screens. Lasts over 30 days. Pull off date tabs to show when to change it.   NOTE: Two each per sealed package, Ten each or five packages per small case.