My dog is a chewer and this ball has held up way better than the flimsy ones we've tried before. The openings make it easy to stuff a couple of biscuits in there, and it keeps him busy for a good twenty minutes.
Stuffed a few treats inside the roller and it kept my pup busy for a solid twenty minutes, which is a record for him. I like that the ball is a puzzle too, so he's working his brain instead of just chasing it around.