Advance Internal Spring Design Hidden Cable Management Hand-Tightened Friction-Hinges For Smooth, Quiet Operation Designed For All Thronmax Mics And Other Professional Broadcast Mics Compatible With All Standard Shock Mounts Studio-Grade Design Caster Features A Broadcast Studio-Grade All-Tube Design With Internal Springs And Hidden Cable Management. All Friction-Hinges Are Hand-Tightening, No Need For Any Tools, And A Full 360-Degree Rotation Means You Are Covered For Any Application. Effortless And Quiet, Caster Stays In Place After Being Adjusted, And The Robust C-Clamp Creates A Solid Connection With Your Desktop