Large Capillary Tubes 100 mm x 1.3-1.5 mm ID 1.6-1.8 mm OD 140/pk Glass Micro Pipettes Both Ends Open AAdvance Instruments: Amazon.com: Industrial & Scientific
Dynalon Glass Capillary Tubes with One End Sealed Glass capillary tube; | Fisher Scientific
Extra Thin Glass Capillary Tubes/Micro Pipettes TLC Spotting 0.2-0.25mm ID x 100mm 500 or 1500/pk (1500): Amazon.com: Industrial & Scientific
Pyrex® Glass Capillary Tubes, Melting Point, 100 mm, Vial of 100 | Carolina.com
Kimax® Glass Capillary Tubes, Melting Point, 100 mm, Vial of 100 | Oriental Trading
Precision Capillary Glass Tube – Ultra Accurate and Low Friction