Package Included: 4 x Metal Table Mounting Clamp(Boom arm, Cellphone, iPad are NOT INCLUDED). Made of high-quality aluminum alloy and are thicker than ordinary mounting clip of boom arm, so can be used for a long time. Soft rubber padding protection at the contact point with table protects your table from any scratches. It can easily clip to any desktop up to 2.2in/5.6cm thickness. Suitable for any stores, families, stages, studios, broadcasting. Aluminum alloy adjustable table mounting clamp is designed to install your microphone firmly on the table top or other flat surface using an adjustable positioning screw.