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4mm outer diameter X 2mm inner diameter. Available in a variety of diameters, 500mm in length (19.68"). Sizes are listed, outer diameter by inner diameter by length. For example, 3mm X 2mm, measures 3mm outer diameter and 2mm inner diameter. From this, the wall thickness is determined to be .5mm. (outer diameter - inner diameter / 2) Sold individually.
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🇺🇸 Ship from USA · On Agora since 2025
$2.13