When cats bite or lick these balls, the plant fibers in the catnip can clean the teeth and help remove debris to effectively reduce the plaque and tartar, freshen breath, improve kitten’s oral health. In addition, catnip kitten toys can promote cat’s gastrointestinal digestion and help eliminate hair bulbs. catnip, become excited, alive. If the cat feels stressed, these cat toys can help reduce stress and make them more relaxed. Strong stickiness, please stick them on smooth surface like glass wall, floor tiled floor, a window, etc. Each wall-mounted catnip ball can be removed for separate use, there are 3 dust covers to prevent moisture and dust, please close the covers after use.