World Precision Instruments 1B150F-4 Standard Glass Capillaries, 1.5 OD, 4" (Pack of 300)

Features Close dimensional tolerances assure microelectrode uniformity and reproducibility. Available in one-, two-, three-, five- and seven-barrel configurations; a complete range of single barrel thin-wall sizes; and a variety of special configurations. Capillaries with or without inner filaments are available for making microelectrodes in a wide range of diameters . Filaments Capillaries with filaments contain a solid filament fused to the inner wall, which speeds filling of electrodes. Fire-Polished Fire-polished glass capillaries are easier to insert into microelectrode holders without damaging the gasket. More importantly, fire-polished glass won't scratch the chloridized wire used in a recording electrode. Fire-polishing does not affect the glass's mechanical or electrical properties. Quantity in Vial 300 . Note: Because electrode tips erode when left filled with saline solutions for long periods, electrodes should be made and filled immediately prior to use.