BirdieBall 12 pack Introducing BirdieBall, the limited flight practice golf ball that you can hit anywhere. It’s the best golf training aid invented this century. What’s so unique? It looks like a "napkin ring" yet flies exactly like a golf ball. It has a limited distance of about 40 yards. Hit the BirdieBall back and forth. It spins exactly like a golf ball, it is heavy, it draws, it fades, it is practice, and it is fun. BirdieBalls are made of a super polymer and are very durable.