Black Value of Pi Aluminum Cuff


This cuff sports the correct value of pi to more digits than you're ever likely to need, unless you're calculating missile trajectories. 

Technicam notitia (the technical bits

  • Dimensions: 6.625" x 1.625" x .045" 
  • Can be adjusted to fit almost any wrist size
  • Ships in spiffy black velvet bag (classy!)


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