Features: Spin and Chase Cat Scratcher – An interactive toy that keeps your pet chasing, scratching, and playing this unique Scratch & Spin system features a corrugated cardboard pad in the middle and two balls they can chase in the inner track.Replaceable Cardboard Pad – Our double-sided cat scratching board can be swapped out for other round cat scratching pads for cats, so you can support active play long after this pad is torn to shreds. Perfect for supporting kittens and cats of all ages.Two Interactive Balls for Cats – Inside the trac