These top-of-the-line boom stands feature a variable, piston-type air suspension system to ensure microphone protection. Model SB-36W is equipped with silent-motion, ball-bearing swivel casters of hard rubber for friction-free and vibration-absorbing mobility. Two-piece horizontal boom assembly is 7/8" dia. cold rolled steel with a heavy-duty, die-cast, gyromatic swivel and an adjustable 6-lb. counterweight for precise and secure orientation. Tubing terminates with an adjustable mic holder swivel with standard 5/8" - 27 thread to accept all microphones, holders, and adapters. Vertical tube assembly is manufactured of 11/8" and 7/8" chrome-plated cold rolled steel and includes the wearproof Atlas Sound® grip-action clutch for easy adjustment and positive locking. Model SB-36W includes wheels for a height span of 49" to 73". Triangular cast metal base with edge-concentrated weight distribution offers extra stability and is finished in ebony epoxy with a chrome shell. SB-11WE. Economical studio boom is especially suited for small studio/broadcast applications and for stage miking of drums and percussion instruments. Unit features a 60" long, two-piece horizontal boom assembly constructed of steel tubing. Boom includes a Performer Series swivel clamp and an adjustable 2-lb. counterweight for effortless boom arm orientation. Tubing also incorporates a 90° angled end for optimum microphone positioning and terminates in the standard 5/8" - 27 thread to accept all microphones, holders, and adapters. Vertical tube assembly is 11/8" and 7/8" dia. cold rolled steel with an adjustable height span of 43" to 68". Tubing features the wearproof Atlas Sound® grip-action clutch for positive locking control. Triangular die-cast base with edge-concentrated weight distribution offers extra stability and is equipped with three, hard rubber swivel casters for effortless and silent mobility. Entire assembly is finished in non-reflective ebony epoxy.