HOLLOW ROUND CAPILLARIES MANUFACTURED IN CLEAR FUSED QUARTZ, ID: 0.15mm, OD: 0.25mm, Tolerances +/- 10%, Both ends open. Supplied in screw cap vials - Each vial contains 100 capillaries. Available in 100mm, 300mm and 600mm lengths. Part numbers CV1525Q-100, CV1525Q-300, CV1525Q-600.