Have the Balls ordered because I read (and seen) was pleased to play the ferret so. With me flit 2 of this fur terrorists around. One has not the bean interested in the balls and the other she has enough to eat. Unfortunately, to be taken literally. It zertackert the balls every second with her teeth. If at some point begins to tear pieces from the ball, I have to dispose of it (nothing is swallowed). Of the original 100 balls are still about 60 left after 2.5 weeks. I'll look for balls that can not be push and thus be unassailable for the teeth. Whoever therefore has a tip for me, let me know.
I give the balls still 5 stars because the help it can and me not sold as ferret-proofed.