KONG Naturals are ecologically responsible. All materials and dyes come from natural, renewable resources. These toys are designed to appeal to the natural instincts of the indoor cat. KONG Naturals cat scratchers will satisfy your cat's natural scratching instincts, while encouraging appropriate scratching behavior. Our environmentally friendly Cat Scratchers are made with renewable resources and are recyclable. Simply sprinkle the enclosed catnip onto honeycomb scratch pad. Each no mess pad is reversible for extended use. Save natural resources and money by purchasing KONG Cat Scratcher refills. Keep outer Cat Scratcher box and replace worn scratcher pads with Cat Scratcher Refills. KONG Naturals are more than just cat toys - they're fun with a purpose!