CHIEFCMS018024This Speed-Connect Adjustable Extension Column lowers projector to desired height. Features: • Provides height adjustment in 1 increments • Knotched design for adjustment without disassembly • Flow-through cable management with cable exit port • Includes set screw for add stability • Consists of 1.5 NPT column threaded on both ends • Use in combination with any Chief 1.5 NPT ceiling plate or other accessory Specifications: • Length: 18 - 24 (304.8 - 457.2 mm) • Color: Black (also available in Silver or White) • Weight Capacity: 500 lbs (226.8 kg) FeaturesBracket TypeColumn ColourBlack Max Weight 226 KG