Fits most flat panel monitors from 13" to 27". Please note, 3 x 27" monitor in landscape mode may not fit. Supports up to 22 lbs per monitor. * Height adjustable. Single arm can articulate in three different locations for best positioning. * Tilt: +/- 15 degrees, Swivel: 360 degrees, Rotate: 360 degrees * VESA mounting pattern: 75 x 75 or 100 x 100 * Heavy duty "C" clamp integrated double lock ensures stable mounting onto the desk.