The main problem it has is that it is made of cheap plastic with no elasticity at all. Within just a few minutes of giving it to my cat, after a few hits on the wall, it opened in two, releasing all the treats it had inside. I tried it many times and every time, without fail, with just a few hits, it managed to break into two pieces. Personally, I wouldn't recommend it, but considering its low price, I don't think you have much to lose by trying it. It's just a shame because for the few minutes it lasted, it seemed to really please my cat.