Scoopfree Ultra automatic litter box ScoopFree Extremely automatically rakes and cleans the litter box and it works with cartridges pre-filled with blue crystals to manage odors because they take up liquids and dry solids. This product characteristics and adjustable delay which lets you program the unit to rake the cat https://petkit-purobot-uae18529.alltdesign.com/about-robotic-pet-cleaning-55566904