Cheaper Than A Coupling

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dual use,science,sharpie,tube,tubing
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I have a feeling I know what kind of lab this is. ~Not-So-Handy Andy

Is This What Happens At Spin Class?

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bicycle,bike,dual use,sewing,tubing
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Because if it is, I want to start joining my (imaginary) girlfriend. ~Not-So-Handy Andy

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