Since we are currently in a stressful situation for the cat (a conversion), I needed a job toy that employs langsfristig. Have seen many balls and lining boards Fummel tried, but my cats clear the things in seconds empty. Here surprisingly not. You pick up a few crumbs out, eat, go ahead. After 5 minutes, however, they are back and fumble on. So I had imagined. Only criticism: Thanks to its lightweight plastic it can easily tip! Nor have the cats failed, but when they realize it is well to qualify for Coonie a no brainer to the food! But if necessary, you can complain that part yes. All in all, I am thrilled !!!