HOLLOW ROUND CAPILLARIES MANUFACTURED IN CLEAR FUSED QUARTZ, ID: 1.00mm, OD: 1.20mm, Tolerances +/- 10%, Both ends open. Supplied in screw cap vials - Each vial contains 25 capillaries. Available in 100mm, 300mm and 600mm lengths. Part numbers CV1012Q-100, Cv1012Q-300, CV1012Q-600.