Description Newly Design 4 Layers: One more layer, one more ball, premium than the normal version, The top can be inserted a cat teaser toy. This 4 level-tower track toy is detachable, super easy to install and clean. . Upgraded Catnip Luminous Ball: 4 layers, 5 balls - 2 normal colorful balls,1 upgraded ball filled with catnip,1 upgraded luminous bell ball, and new design in 2021 with one 360 rotating ball on the top. A source of constant entertainment, get many hours of fun out of it . Multiple Gameplay, More Interesting: Equipped with a feather teaser cat wand toy, it is pluggable on the top, or you can take it down to tease the cat, stimulates the cats senses and hunting instincts, keep cats occupied, give them more fun . High-Quality Material - Safe Sturdy: Adopted safe, non-toxic, and eco-friendly PP polypropylene resin, odor-free, scratch-proof, and bite-resistant, smooth corners and no burrs 4 anti-skid pads at the bottom to prevent pets from moving around, more stable . 100% Satisfaction: Love your new Cat Toys or your money back We stand behind our products and make sure of your complete satisfaction.If you find any questions or quirks,plz let our friendly and responsive after-sales support team know, well solve it. .