Most cat toys get ignored after five minutes — this one doesn't. The Kitty Kurlz™ is a shape-shifting scratcher, ball track, and cozy hideout all in one, built from non-toxic double corrugated cardboard that's safe on paws and lasts six times longer than regular scratchers. Connect multiple units together like building blocks to create an ever-changing playground that keeps even the most restless cats mentally and physically stimulated for hours.