borosilicate glass tubing 1.Diameter:6mm-315mm 2.W.T:1mm-9mm 3.Standard ... -6k-1)Available colorsClear, Opaque white, opaque black, transparent black, Dark blue ,light blue, amber, yellow, green, pink,Purple, redRegularly stocked tubing ... , 51 x 4.8mmNote: standard length of clear tubing:1500mm; standard length of colored tubing:1220mmApplicationglass bong, waterpipe pot,,lightingtubes, chemical lab ...