Fully Threaded Column 0-6" (0-152 mm) A threaded column provides infinite height adjustment from suspended ceiling kits. Features: Provides 0-6" (0-152 mm) of height adjustment to any projector installation Collar prevents unthreading from below the ceiling Compatible with all Chief suspended ceiling kits Available in Black and Silver Specifications: Weight Capacity: 500 lbs (226.8 kg)