The Westcott V-Mount Battery Clamp securely attaches aV-mount battery to a light stand, tripod leg, boom arm, or other support gear.This enables you to conveniently use the batterys accessory ports to power alight, monitor, or any other device you need on set. Supporting batteries up to4.4 lbs, the clamp features adjustable jaws that can grip between 1 to 2 inches(25.4-50.8 mm) in diameter. Built with durable construction comprising ofaluminum and plastic, and equipped with protective rubber-padded jaws, thiscompact clamp is designed to keep your equipment safe and powered wherever yourshoots take you. For cleaning, spot clean with a dry cloth.