The Catit Magic Blue Litter Box Jumbo allows for optimal air filtration Ideal for large cat breeds and multi-cat households Large opening for easy scooping and paw-safe front door Built-in overlap mechanism prevents leaks Includes free Magic Blue filter that absorbs hazardous ammonia gases for 1 month The Catit Litter Box series comes with a fresh white top on a dark base to camouflage stains. Fewer leaks Cats usually turn their head towards the opening of the litter box when urinating. That?s why we raised the backside of the litter box. The overlap mechanism prevents leaks caused by urinating or spraying litter box no leaks system visual explanation Easy to scoop and clean The litter box is easy to disassemble and clean. Simply hand-wash each part with natural soap, free of chemicals or abrasive solutions. Rinse thoroughly afterwards. Littler box can easily be opened to remove the litter Handy features Carrying handle for easy transport + slider locks for extra security Handy features of the Litterbox Regular Packaging of Magic Blue Cartridge Each Catit Litter Box includes a free Magic Blue Cartridge set. Magic Blue is a non-toxic litter box filter that absorbs and retains up to 80% of hazardous ammonia gases without adding forced chemical scents. The Cartridge set includes a reusable plastic holder and 2 filter pads (for 1 month).