Material: 304 Stainlesss Steel. it is not a water pipe and is not sealed. ID: 4mm/0.16in, 6mm/0.24in, 8mm/0.31in, 10mm/0.39in, 13mm/0.51in,16mm/0.63in,20mm/0.78in. Due to various factors such as display brightness, light brightness, etc., the actual color of the item may differ slightly from the image displayed on the website.
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