HOLLOW RECTANGULAR CAPILLARIES MANUFACTURED IN BOROSILICATE GLASS, ID: 0.70mm x 7.00mm, Wall thickness 0.490mm, Tolerances +/- 10%, Both ends open. Supplied in screw cap vials - Each vial contains 9 capillaries. Available in 50mm, 100mm, 300mm and 600mm lengths. Part number 4707-050 (4707-50), 4707-100, 4707-300, 4707-600, RT4707.