24 Jul 12 “ Borosilicate Glass Blowing 5 Tubes 10 mm OD 5 mm ID 2.5 mm Wall Thickness
5 tubes of 12" Inch Long Borosilicate Glass Blowing Tubes 10 mm OD 5mm ID 2.5 mm thick wall . May have variance 0.01 - 0.02 in width. Fire polished and smooth both sides....