Good Material - The magnetic circuit board holder is made of aluminum alloy, the base is an iron base and stainless steel, which is not easy to scratch, high temperature resistant, stable and durable. Great for soldering, repairing electronic and holder PCB etc. Magnetic Flexible Arms - 4 adjustable metal gooseneck arms with a magnetic base, which have a powerful attraction to the steel base. We included two 9inch / two 4.5inch helping arms, that can be placed anywhere on the base and angled to almost any position. Pretty much ultimate flexibility.3X Magnifier Lamp - The magnifier is crafted with a 3X distortion-free optical glass lens and associated with 42PCS (21pcs white led+ 21pcs yellow led )energy efficient LED lights (USB powered). Each lighting mode has10 brightness dimming levels.