Studio-Assets 6.5' Boom ArmStudio Assets 6. 5' Boom Arm Studio Assets SKU: SA1228 Helix SKU: SA1228 Overview The 6. 5' boom comes in three sections allowing you to assemble all three for 78" in length, or use just two sections for 53. 5". Disassembled the boom is only 29. 75" in length. The boom weighs only 3 pounds and comes with a pivot clamp and a 9. 5 pound (5. 3 kg) counterweight. At the end of the boom you are able to mount the included double ended 5 8" stud on the end