I used a "Power Wrist" for a while back in '84. They aren't made any more, but the closest I found to it is the Master Wristmate (for the "Power Wrist") or the Master Wristmaster (for the "Perfect Wrist"). There might be others out there that are closer to the original, but I've found that these are pretty close.
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"Never" is the word that God listens for when he needs a good laugh.