Okay, let's talk about keeping restrooms fresh. These Big D Extra Duty Urinal Screens are seriously heavy-duty. Each screen has a non-para block inside that releases cherry fragrance with every flush while protecting drains from debris. The cool part? One screen lasts up to 1500 flushes - that's months of use in busy restrooms. They're perfect for offices, schools, restaurants, hotels, pretty much any commercial restroom that gets heavy use. The blocks are acid-free, which is better for your plumbing, and they're water-soluble and 100% biodegradable, so you're not harming the environment. They contain no paradichlorobenzene too. You get 12 screens in this pack, which should keep your restrooms smelling fresh for a long time. Maintenance crews love these because they're easy to install and last forever. Just pop one in the urinal and forget about it for months. Seriously, if you're tired of constantly replacing those cheap urinal pucks, these are game-changers.