【2021 Upgrade - 4 Layer Cat Toy】The cat toy has one more layer than most trackballs. The more levels and balls, the more fun the cat has. Let the cat say goodbye to loneliness and laziness, and have fun~ 【Upgrade Catnip/Bell】Cute cat toys - 4 layers (3 balls in total) : each layer has a ball, and the three maple balls are: ① glitter ball ② catnip ball 3 bell ball. Cats prefer it! An active cat can play ball all the time! 【Multiple ways to play】The lovely interactive cat toy has a hole on the top. You can insert cat feather toys and lose weight while playing with your cat. This kind of game can bring more fun to cats! 【Smooth corners and non-slip floor】The cat ball toy uses safe, non-toxic and environmentally friendly PP polypropylene resin, which is odorless, wear-resistant and has good impact resistance. The corners are smooth without burrs. Cats can play safely! There are 4 non-slip pads at the bottom, which are more fixed and prevent pets from moving while playing