HOLLOW ROUND CAPILLARIES MANUFACTURED IN CLEAR FUSED QUARTZ, ID: 2.00mm, OD: 2.40mm, Tolerances +/- 10%, Both ends open. Supplied in screw cap vials - Each vial contains 25 capillaries. Available in 100mm, 300mm and 600mm lengths. Part numbers CV2024Q-100, CV2024Q-300, CV2024Q-600.