"My kitten is very active and tends to get bored of her toys quickly. These Cat Crazies have kept her interest for weeks! She has made up several games - bat the crazy, bite the crazy, toss the crazy, and hide the crazy in a box. Just watching her play with these is great entertainment, as she'll chase it across the floor, then stop and flip it several times, trying to catch it, in an elaborate kitty dance. Admittedly they are getting a bit mangled by us stepping on them, but despite that and the numerous teeth marks, they are still holding up well."