Mental Floss

Thingamajig Thursday: ferrules

David K. Israel
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It's been a while since our last Thingamajig Thursday. Today I'm naming that slim metal band, or clamp, that wraps around a pencil, holding the eraser in place. You'll also find them stretched around a paintbrush, keeping the bristles tight, or the part of a violin bow that holds the hair to the "frog," or base.

fer.jpg
fer.jpg /
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