... blue, amber, yellow, green, pink,Purple, redRegularly stocked tubing size7x1.5mm,8x1.5mm,9x2mm,12x2mm,12x2.2mm,13x1.8mm ... tubing:1220mmApplicationglass bong, waterpipe pot,,lightingtubes, chemical lab tubes, scientific glassware ,cups and bottles, food packing, wine bottles of top-quality ... , decoration, fitment and so on. borosilicate glass tubing