We can offer borosilicate glass tubes with various sizes and colors C.O.E3.3±0.1(10-6k-1) ... 3.2mm, 38 x 4mm, 44 x 4mm, 51 x 4mm, 51 x 4.8mmNote: standard length of clear tubing ... :1500mm; standard length of colored tubing:1220mmApplicationglass bong, waterpipe pot,,lightingtubes, ... wine bottles of top-quality, decoration, fitment Borosilicate clear glass tube