I had several regular sized Chuckit that I like, but as my lab grew up ...  I worried more and more about the size of the ball and the larger size of his mouth...and he loves to jump up and catch a ball in the air.  THIS MEGA Ball size is perfect for my dog...it's definitely too large to slip down his throat by mistake when he is super excited playing ball.  However, it's not too large of a ball either....he can still catch it in mid air.