AEC+012018 Length: 12"-18", Color: Black Features: -Peerless TV and Projector Ceiling Mounts & Parts collection. -Select the adjustable range to meet your needs. -Locking, tube-in-tube design. -Notched, both ends, for safety locking. -NOTE: Length options refer to drop distance, actual column length with threads adds roughly 3.5''. Product Type: -Extension column/Extension column accessories. Dimensions: -Adjustable at 1'' increments. Overall Width - Side to Side: -1.32". Overall Depth - Front to Back: -1.32". Length 6"-9" - Overall Product Weight: -3 lbs. Length 12"-18" - Overall Height - Top to Bottom: -144". Length 18"-24" - Overall Height - Top to Bottom: -216". Length 2'-3' - Overall Height - Top to Bottom: -24". Length 10'-12' - Overall Height - Top to Bottom: -120". Length 10'-12' - Overall Product Weight: -45 lbs.