The Quirky Kitty? Three Layer Ball Track Cat Toy is perfect for cats who love to bat and chase ball toys. This ball track toy provides exercise and mental stimulation for cats of all ages. The stack of ball tracks includes brightly colored balls that spin and move separately as a cat bat and play. It?s designed with safety in mind and includes a safety bar that prevents curious cats from trying to stick their head into the center of the toy. Three levels of interactive play mean tons of batting, pouncing, and chasing.