My puppy is now 4 months old and has been playing it 2 months old was with this ball. The ball is especially great to entertain themselves (as I noticed), because my puppy also love alone with the ball played without I have to throw it. Due to its special design of the ball teeters when prod back and forth and also does not roll too far away of its own accord.
The two months using one sees him although a bit on, but so far he still holds reliable and I can not see any major flaws.
I would recommend this highly enough ball, because I see how much fun my puppy it.