Strong steel arm mounts screens up to conveniently free up desk space. Hold one 13-27" monitor with a max load capacity 22lbs per arm.. Fits monitors with 75x75mm or 100x100mm VESA size (distance of 4 mounting holes on the back of the monitor). Feature +/-80 tilt, +/-90 swivel and 360 rotation, 400mm height adjustable for optimum viewing angle. Two installation methods: c-clamp and grommet base provide you different options in different circumstances. Comes complete with instructions plus all accessories needed for simple installation.