UNIVERSAL SINGLE MONITOR ARM: Fits one computer screen up to 32 inches, with a maximum support weight of 17.6 pounds each, using the 75x75mm or 100x100mm VESA square bolt hole pattern found on the back of the monitors. Comes with interchangeable C-clamp or grommet base mount for use on desktops. FEATURES: Single arm monitor mount has a MECHANICAL SPRING (will never leak like a gas spring can, and works every bit as well), height adjustable single monitor stand has integrated cable management and is made out of heavy duty steel and aluminum alloy.