I have a NIB Retro Roto Blue that I am thinking about selling. I know the ball is #16 and it is a pin in ball. The exact specs I forgot off the top of my head but if there is serious interest I will dig it out and look them up for you. For anyone not familiar with this ball it is a skid snap beast. Message me if you are SERIOUSLY interested.
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"Make it idiot-proof, and someone will make a better idiot."