Well, I can not agree with all the previous speakers. in that the feed labyrinth is inserted into the gray rubber base, it is quite stable! there would already which can include the switch throw ding! I use the part completely to feed them, get them hills, and just comes in up when one of the two hungry, he fished something out of the maze, has little employment and what to feed! above the large hole, I also closed up, as they bask eat from above ^^ clearly a buy rating for cat owners ...