Cats love boxes. It is a universal truth. Catty Stacks are the perfect way to let your cat embrace their love of boxes, climbing and playing. You can buy one or a few to make a fun playplace for Fluffy. Made of recycled corrugated cardboard and vegetable based ink, they are good to the environment and safe for your cat. They are also 100% recycleable so when your cat has done all he can to the box, you can send it off to be made into something new. They also come in many different colours for you to mix and match. -tc