colorofthewind Cat Toys Roller 4 Level Towers Tracks Roller Cat Toys with 4 Colorful Ball Interactive Kitten Fun Mental Physical Exercise Puzzle Toys Active Healthy Lifestyle WHAT DID YOUR CAT DO AT HOME WHEN YOU GO OUTSIDE? Sleep too much so becomes obese? Destroy furniture after eating? Waiting for you back to home? Maybe it is time to get a funny toy for your pet! KEEPS AWAY LONELY: This tower of track ball toy provides hours of exercise & self-amusement for health care and elimination of boredom and pet depression since your cat can play alone when master is not at home. STACKED & STURDY CONSTRUCTION: This track cat toy is made of ultra-strong, tear-resistant PP that stands up to crazy cat scratcher antics, detachable multi-layer for easy cleanup and with non-slip base pad to prevent slippery. So it is perfect for one or more cats. PREVENT TO GETTING STUCK: In order to prevent the cat's head from being stuck, the track cat toy add a protective cover on the top, to prevent the toy from hurting the pet by accident.The anti-slip grips ensure cat toy does not slip. SPINNING BALLS KEEP CATS BUSY: The Tower of Tracks cat track toy stimulates your cats senses and hunting instincts, this will increase their sensitivity and will not cause persecution on the furniture at home.