Interesting Cat Toy---This tower cat toy consists of 3 layers, and with 3 different coloured balls that are located in the tracks. The spinning ball on the track stimulates the cats senses and hunting instinct. The cat can play alone, eliminating the cats boredom and depression. Anti-Slip & Firm---This track cat toy is made of tear-resistant PP that stands up to resist the crazy cat's paw scratches, detachable multi-layer for easy cleanup, and with 4 non-slip pads on the bottom of the toy to prevent slipperily. Multi-Cat Play ---Multiple cats can play the track cat toy together, avoiding cat fights caused by only one toy. This toy will enhance their friendship. Also it can unleash the cat's energy and help your cats stay fit and healthy. Fun Toy---Cats need toys to play and exercise, whether you 've got a kitty or and adult cat, this roller cat toys provide a fun way to get exercise. It is suitable for all cats' needs and keeps your cat fun and not bored. High Quality Material ---Adopted safe and eco-friendly PP high quality plastic, through fine grinding, smooth edges, can be safely played to cats, let the cat enjoy it.