... : 1500mm 4.special sizes:50*7,50 borosilicate glass tubing C.O.E3.3±0.1(10-6k ... amber, yellow, green, pink,Purple, redRegularly stocked tubing size7x1.5mm,8x1.5mm,9x2mm,12x2mm,12x2.2mm,13x1 ... 4.8mmNote: standard length of clear tubing:1500mm; standard length of colored tubing:1220mmApplicationglass bong, waterpipe pot,,lightingtubes, ... quality, decoration, fitment and so on. borosilicate glass tubing