Corning 9530-1 Pyrex Capillary Melting Point Tube, Both Ends Open, 1.5 mm-1.8 mm OD, 0.2 mm Wall Range (Pack of 100)

Corning 9530-1 Pyrex Capillary Melting Point Tube, Both Ends Open, 1.5 mm-1.8 mm OD, 0.2 mm Wall Range (Pack of 100)

Corning 9530-2 Pyrex Capillary Melting Point Tube, Both Ends Open, 0.8 mm-1.1 mm ID, 0.25 mm Wall Range (Pack of 100)

KJIAXQAN 200pcs Glass Capillary Tubes, 75 mm Micro Glass Capillary Tubes Glass Pipettes Capillary Transfer Tube with 1.1 mm ID and 1.5 mm OD for Lab Capillary Tubes