Heavy Duty Carry: Made out of high quality steel frame with super-strong springs, ABS plastic clip mic holder, very sturdy and durable, designed for supporting almost all microphones up to 3.3 pounds / 1.5KG Stability and Safety: Dual suspension springs on each boom arm, very stable for using your microphone without shake and prevent microphone from suddenly dropping Adjustability: Folding type, convenient to carry around, and the steel frame with the adjustable screw allow you adjust the suitable angle & height to show your perfect voice