1、Soft Foam Handle: This mic boom arm adopts high density soft foam handle for comfortable and nonslip grip. 2、1/4 Inch Screw: The 1/4 inch screw at the top can be connected to microphone, digital camera, motion camera, supplementary light, stabilizer, mobile phone accessories, etc. 3、Locking System: This mic boom arm adopts nonslip tube and locking system, locking in clockwise, and loosen in anticlockwise. 4、1/4 Inch Screw Hole: This mic boom arm has 1/4 inch screw hole at the bottom for tripod or other devices. 5、Aluminium Alloy: This mic boom arm is made from aluminium alloy material, adopting CNC and anodizing technology, which ensures high hardness and high durability. 1 x Mic Boom Arm Item Type: Mic Boom ArmMaterial: Aluminum AlloyNumber of Sections: 5Top Thread: 1/4in ScrewBottom Thread: 1/4in Screw HoleStorage Length: Approx. 40cm / 15.75inStretch Length: Approx. 39-155cm / 15.35- 61.02in (Due to Manual Measurement, Please Allow Error)Maximum Load Bearing Capacity: 3kgDiameter: Approx. 22mm / 8.66in-19mm / 7.48in-16mm / 6.30in-12mm / 4.72in-10mm / 3.94in4 Section Extension Rod Parameters:Number of Sections: 4Top Thread: 1/4in ScrewBottom Thread: 1/4in Screw HoleStorage Length: Approx. 45cm / 17.72inStretch Length: Approx. 45-155cm / 17.72- 61.02in (Due to Manual Measurement, Please Allow Error)Maximum Load Bearing Capacity: 2kgDiameter: Approx. 19mm / 7.48in-17mm / 6.69in-13mm / 5.12in-10mm / 3.94in