K&M 211/1 Black, Boom arm, Extendable tube construction, With 3/8"" thread, locking washer and a handgrip., Tightening with a handy T-bar locking screw, Silent adjustment and tilting, No scratches on the tube surface due to plastic sleeves in the steel part, Threaded connector 3/8"", Boom arm length: 470-770 mm, Weight: 0.78 kg, Colour: Black