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The pupillary distance (PD) measurement is a requirement for people who want to purchase eyeglasses. Here, find out how to measure your PD using a mirror and a ruler. Share on Pinterest Some eyewear ...

Chances are you already need a steel ruler for your fixing and making tasks, so why not use one that can do much more than most? That's the idea behind the ten-function Tiruler, which packs a ...