Crazy Cats: Cats that have licked and nibbled on catnip balls will turn into "crazy” cats. Rub the catnip toy with its face, head and body like crazy. Like a drunkard. It is very cute.The Silivervine's smell is rubbed on body by the cat,that can avoid mosquitoes and bacteria. Safe Material:Made of 100% natural plants, without any chemical additives, it will not cause any harm to your kitten.4 different flavors: Cat nip/silivervine/silivervine's Fruit/Candy,that meet the different needs of cats. Unique Design:Use in combination or split it and paste it on any smooth surface. The dust cover can not only prevent dust, but also freely control the use of the cat.360°rotatable,fits the licking habits of cats. Catnip cleaning teeth, promote digestion,intestinal absorption, spit out hairball, increase appetite, and increasing the amount of exercise for cats.Cat sugar is rich in a variety of micro-vitamins to supplement energy. NOTE:Experiments show that catnip balls are not effective for all cats. If your cats are not interested,feel free to contact us and we will issue full refund at once without item return.