Glass Tube 10 Inch (±) 5mm Open Double Mouthed Glass Pipe. (±) 5mm borosilicate glass tube fits in all rubber stoppers & attaches to (±) 4.8 mm plastic or rubber tubing. Pack of 2 Pcs. \n \nThis tubing fits very tightly in #3 and smaller stoppers. Use Vaseline or cooking oil to help insert the tubing into the stopper, holding the tubing with a cloth to protect your hand if it breaks. \n \nYou can easily make a bend in a 5mm glass tube 10 Inch by heating the tube in a candle or alcohol burner flame until the glass softens. Then carefully bend the tube to the desired shape and hold it in that position for a few seconds until the glass hardens again. Be sure to heat the glass tube over a section about 1-1/2' long to avoid crimping the tube when you bend it. \n \n

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• Double Mouthed Glass Pipe
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• Size: 10 Inch Long, 5mm Dia
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• Pack of 2 Pcs Glass Tube
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• Made of Boro 3.3 Glass
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• Made in China
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