I think the hold flaps are a little too good.

And I worry that while he is trying to chew on it that the flaps are going to fall off.

He hates the flaps that are in the hole of the toy where you can put treats

The hole for treats has stiff rubber flaps holding the treat in and makes it impossible for not only my dog but even for me to get them out

Very difficult to get treats out of the opening they have to be very small as the flaps are hard for the dog to get the treats out