The Matthews 5/8" Grip Rail is a professional-grade telescoping grip arm that solves the universal problem of working in tight spaces. Unlike traditional fixed-length grip arms that force you to accommodate their full length regardless of the situation, the Grip Rail extends only as far as needed—from 24" collapsed to 42.5" fully extended. This tool-less adjustability gives production professionals the versatility to work efficiently in car interiors, tight sets, compact studios, and any confined environment where standard grip equipment becomes a liability. Built with a solid stainless steel inner rod, the Grip Rail maintains structural integrity under load without flex, sag, or bow. Precision hash marks and flat spots positioned every 2 inches allow repeatable positioning and prevent unwanted rotation when locked. The steel baby pin features a knurled undercut to prevent fixtures from dropping if connections loosen, plus a safety hole for positive retention with a cotter or lynch pin. The female ¼"-20 thread is industry-standard and includes a set screw to convert to male ¼"-20 threading. Whether you're rigging lights in vehicles, setting up podcast microphones, triangulating camera positions, or working on any production where space is limited and adjustability is essential, the 5/8" Grip Rail replaces multiple fixed rods with one versatile solution. Rated for 10 lbs horizontal and 22 lbs vertical loads, it weighs just 2 lbs and integrates seamlessly with standard grip heads and mounting hardware.