Classic one-piece boom arm with 3/8" thread, and sliding adjustment through non-scratching swivel joint. Easy tightening with T-bar locking screw. Complete with locking washer and plastic handgrip. Boom arm: One-piece design Boom arm length: 800 mm Clamping: T-bar locking screw Material: Steel Threaded connector: 3/8" Weight: 0.664 kg