A few weeks ago, I posted a story about George Allen inventing weighted footballs for quarterbacks and long snappers to build arm strength. Manufactured by Voit, they gained use in the 1960s before falling from favor. I have since learned that a friend, Ron Pomfrey, has in his collection an unused Power Arm ball in the original box. The ball is an absolute beauty!
They still make them today. One manufacturer is "Champ Pro" . The ball weighs 2 lbs. Champion Sports has a 3 lb version.