It’s ok but..
I don’t like that the lid cannot be locked to the base. My cat almost lifted the lid off straight away which obviously defeats the purpose. My cat also bit the toy and has made teeth marks on the base and almost cracked the lid. Cats would need to be supervised whilst playing with this in case they bite & crack the lid which they can then cut themselves on. If you’re purchasing this toy for them to use whilst you’re away from home I would think twice. I regret buying this.