catnip balls are made of pure natural plant extracts, no chemical additives contained. Rest assured this toy is no harm to your favorite kitty. Includes 3 different flavors: catnip, silvervine and gall fruit that conspire to arouse your cats interest to lick and play Practical Design: the cat toy can easily stick to the wall or other surfaces with strong viscous force, no falling off when your kitten licks and plays. The 3 balls are 360 rotatable when being licked^Keep Cats Healthy and Happy: Catmint is conducive to mitigating cats lassitude and depression, stimulating appetite, improving digestion and excreting hairball Teeth Cleaning: catnip could effectively reduce cats dental plaque and tartar, freshen breath and improve oral health for your kittens^Caution: According to our diligent experiments, we found that kittens under 3 month old might not be interested.