Detachable tower in 3 parts: The Cat Toy Roller with 3-Tier Tower Rails has a 3-layer design. With stacked and sturdy construction, this tiered cat toy is durable with cute cat head shape on the top tier, closed top, 3 colorful moving dollies to attract cat’s attention. It is perfect for one or more cats. Keep Neglected Cats: The cat toy roller rotates to arouse the cat’s interest, stimulate the hunting instinct and interact with the cat. Even the cat can play alone instead of sleeping when you are not at home. Helps keep your cat fat and dull. Safer Materials: The cat ball tower is made of high quality PP plastic, which is safe, environmentally friendly and non-toxic, no coarse comfortable feeling, comfortable to touch, cats will not be injured during play, do not hurt your cat. Non-slip and scratch-resistant: The smart toy ball is equipped with foot pads. It can prevent the toy from slipping or scratching the floor or worn environment when the cat is playing. Attracts cats'