HOLLOW ROUND CAPILLARIES MANUFACTURED IN BOROSILICATE GLASS, ID: 0.70mm, OD: 0.87mm, Tolerances +/- 10%, Both ends open. Supplied in screw cap vials - Each vial contains 50 capillaries. Available in 100mm, 300mm and 600mm lengths. Part numbers CV7087-100, CV7087-300, CV7087-600.