The Purina Tidy Cats Litter Box System is a great way to keep your cat happy and healthy. The system includes a cat litter box with a scoop, one pack of 4 cat pads, and 1 bag of 3.5 lb. litter pellets. The anti-tracking features make it easy to keep the box clean and free from odor. The absorbent pads are designed to last for 7 days, so you’ll be able to use them for a full month.