pawbby p1 ultra self-cleaning cat litter box is not only aesthetically pleasing but also highly functional. it is certified by german tüv rheinland for safety, ensuring peace of mind for your furry companions. placing it at home adds an elegant touch, making it look like a premium pet home accessory.,pawbby auto-cleaning cat litter box is compatible with any clumping litter. we recommend high-quality clumping litter. use of low-quality clumping litter, cat waste may not pass through the screen effectively. we strongly recommend using the pawbby natural cat litter, which consists of all-natural ingredients, clumps fast, and is fda approved.