Designed for overhead lighting, this chrome-plated steel Boom Arm from Impact telescopes from 46 - 86" and supports up to 8 lb at maximum extension. Features include a ratcheting pivot clamp handle and rubber-coated section above its counterweight hook for comfortable, secure height adjustment. The boom has a 5/8" receiver and is an ideal match for heavy duty wheeled stands like Impact's LSP-SW10 9.5' Steel Roller. Use and Construction Heavy duty steel construction Adjustable pivot clamp with ratcheting handle for easy and secure positioning Ideal for overhead use of lighting fixtures