SINGLE MONITOR ARM ONKRON G130-B is a heavy duty monitor mount for 17 - 57 inch flat & curved screens that weigh from 4.4 up to 59.4 lbs Ultrawide monitor arm stand fits 75x75 - 200x200 VESA patterns Single arm monitor mount features a gas spring that withstands over 50000 load cycles Removable VESA plate allows you to quickly install or remove the monitor ARTICULATING MONITOR MOUNT You can tilt PC monitor arm heavy duty from -20° to +60° and swivel screen mount arm up to 180° This computer monitor arm desk mount also rotates from -90° to +90° around its axis