[Material]:This Desk Lamp Clamp features a thickened metal base that is extremely sturdy and stable [Adjustable Clamp]:Desk Table Mount Clamp comes with an adjustable positioning screw for easy installation on vertical or horizontal boards [Protective Rubber Pads]:The contact points on both sides of the table are designed with soft rubber protective pads,making the base slip resistant and stable.The soft pads also protect your table from scratches [Versatile Use]:This product is suitable for microphone holder,as well as phone holders,elevated camera arms,tablet arm stands,LED desk lamps etc [Size]:C Clamp Base Stand is Made of metal material with for dimensions of 5.51''x2.99'' and can clamp up to a thickness of 6.8cm, Weight: 0.5621787681 Pounds, Manufacturer: CYDZSRA