borosilicate glass tubing 1.Diameter:6mm-315mm 2.W.T:1mm ... blue, amber, yellow, green, pink,Purple, redRegularly stocked tubing size7x1.5mm,8x1.5mm,9x2mm,12x2mm,12x2.2mm,13x1.8mm ... x 4.8mmNote: standard length of clear tubing:1500mm; standard length of colored tubing:1220mmApplicationglass bong, waterpipe pot,,lightingtubes, chemical ... quality, decoration, fitment and so on. borosilicate glass tubing