HOLLOW RECTANGULAR CAPILLARIES MANUFACTURED IN BOROSILICATE GLASS, ID: 0.10mm x 2.00mm, Wall thickness 0.10mm +/-20%, ID Tolerances +/- 10%, Open both ends. Supplied in plastic vials - Each vial contains 25 capillaries. Available in 50mm, 100mm, 300mm and 600mm lengths. Part numbers 5012-050 (5012-50), 5012-100, 5012-300, 5012-600. NOTE: Previous part numbers were W5010-050 (W5010-50), W5010-100, W5010-300, W5010-600, RT5012.