Description: Sturdy and stable: The Microphone arm stand is made from metal, ensuring its durability and longevity, suitable for most microphones Spiral Locking Base: This adjustable mic stand boom arm clamp features a spiral locking base that provides stability, ensuring your microphone firmly in place Rotatable Arm: The arm of this microphone stand can be rotated 360 degrees, allowing you to adjust the direction freely for optimal positioning. With an overall arm length of 47.7cm/18.78inch, it offers ample reach for various setups Shockproof Spring Structure: Microphone boom arm stand was equipped with a spring structure, effectively isolates vibrations from the ground, desk Adjustable: This table clamp that can accommodate thicknesses up to 5.7cm/2.24inch, making it easy to attach to most desks or tables Specification: Material: Metal   Size Chart: Arm Length: 47.7cm/18.78inch for Outer Diameter: 3.5cm-4.3cm/1.38inch-1.69inch Thickness 5.7cm/2.24inch Package Includes: 1x Microphone Boom Arm Desktop Mount Note: Please allow slightly errors 1-2cm differences due to manual measurement.