143-PLASMA-MT-N???? Plasma TV mount for 12 inch aluminum triangle or box truss. Designed to fit 42-50 inch TVs. Includes a 3.28 ft (1.0m) single tube with 4 clamps (2 to attach to trussing and 2 that attach the TV to the mounting pole). Does not include the bolts from the TV to the clamps, as they vary per manufacturer.