HOLLOW RECTANGULAR CAPILLARIES MANUFACTURED IN BOROSILICATE GLASS, ID: 0.80mm x 8.00mm, Wall thickness 0.56mm +/-20%, ID Tolerances +/- 10%, Open both ends. Supplied in plastic vials - Each vial contains 10 capillaries. Available in 50mm, 100mm, 300mm and 600mm lengths. Part numbers 4608-050 (4608-50), 4608-100, 4608-300, 4608-600, RT4608.