Thick and Durable Material: The heavy duty litter liners is made by rugged material, scratch-resistant, tear-resistant, leak-proof and waterproof. Strong enough to withstand your lovely kitty claws. Convenient Design: Cat litter bags roll packed in one box which has a cutting line for easy pulling out of the bags, each bags is easy to pull apart thanks to the point-to-break design. Jumbo Cat Litter Liners: Pack includes 30 Jumbo Liners with size 103 x 53cm, fit for most litter boxes. Easy Clean up:The litter liner is born for the cat lovers, it makes litter box clean up a breeze allowing you more time to bond with your cat. Regular Replacement: For the health of cats, we recommend to replace litter liners every 4 to 5 days to avoid bacteria growth. How often you will need to replace the litter box liner depends on the number and size of your cats.