KONG Naturals are ecologically responsible cat toys. 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 Straw Ball Teaser is specifically designed to appeal to your cat's love of the chase. Your cat will find the natural catnip irresistible The unique straw weave has lots of nooks for easy snagging and its' unpredictable roll adds to the fun KONG Naturals are more than just cat toys - they're fun with a purpose