Podium Pro MB1 Boom Microphone Arms Adjustable DJ Band Recording 3 Mic Arm Set MB1-3S Podium Pro MB1 adjustable pro audio mic boom arms, 23" booms slide 18.5" from center poles and secures with tightening knobs Telescopes to 38", standard 3/8" threaded inserts attach to most mic stands, standard 5/8" tops attach to most mic clips Mic clips and mic stands not included, designed and engineered in the USA Search MS1SET3, MS1SET4, MS1SET5, MS2SET3, MS2SET4, MS2SET5, MS2SET9, MS2SET10 and MS2SET11 for this boom with stand sets Use for DJ, PA, karaoke, live sound, band, studio, this listing and price is for 3 boom arms