Straight Thru PG Liquid-Tight Cordgrips fit flexible cords, and are for use in clearance or threaded holes. We offer 17 sizes, for cable diameters ranging from 0.064in - 1.732in (1.60mm - 44.00mm). They are all Nylon construction, with TPE (Buna N Sealing gland). They provide protection from vibration, superior sealing at mounting ring, secure grip on the cable, and resist salt water, weak acids, gasoline, alcohol, oil, grease, and common solvents.