Neewer Heavy-duty Metal Table Mounting Clamp for Microphone Suspension Boom Scissor Arm Stand Holder with Adjustable Positioning Screw, Fits up to 1.77"/4.5cm Desktop Thickness--Black (4 Pack) Four mounting clamps included,providing you a convenient replacement Specially designed table mounting clamp for universal microphone suspension boom scissor arm stand Heavy-duty metal clip base provides a sturdy and reliable way to hold your microphone stand With an adjustable positioning screw, can easily clip to any desktop up to 1.77"/4.5cm thick Soft foam padding protection at the contact point with table considerately protects your desktop surface from any scratches. Note:Mounting clamps only. Microphone Suspension Boom Scissor Arm Stand, Cellphone, iPad NOT INCLUDED!