American Educational Glass Assorted Flint Tubing
The most commonly used diameters of flint tubing are included in this assortment that totals 2.5 pounds. All pieces are 24" in length. The assortment includes: 12 pieces of 15mm OD, 11 pieces of 6mm OD, 4 pieces of 7mm OD, 3 pieces of 8mm OD, 3 pieces of 10mm OD and 3 pieces of 12mm OD.