This is a great product for cat owners who want to make their lives easier. The litter refill bags are designed to fit into most litter pails, making it easy to refill the cat litter without having to remove the entire pail. The bags are made of durable plastic and have a strong seal to prevent leaks. The litter refill cartridge is also a great addition to the product, as it makes it easy to transport the litter to the litter box without having to carry a heavy bag of litter. The product is easy to use and is a must-have for any cat owner who wants to keep their home clean and odor-free.