Unfortunately, I have promised more from this tower. He is in fact very easy and if a normal-sized cat pulls off a bit (get stuck with the claw) then tilts the part quickly. In addition, the size adjuster smallest diameter is sized too large for feed falling through in the bottom floor, so that food just down durchfällt.Die lateral interventions are too short without much trouble - my cats the food pföteln laterally with paws out. -Why can fall down? Even my farm cat who never had a lot of toys, has the tower cleared in a few minutes. A real challenge is not the tower. PS: I have 4 normal domestic cats who have never owned a fumble board or the like. I would not buy this part again.