GREAT MONITOR ARM: This excellent monitor stand features a pneumatic spring design and is suitable for back mounting (supports VESA 75x75mm or 100x100mm standards). It can support screens weighing up to 22pounds and covers most 13 inch to 32 inch display models on the market. It is compatible with various sizes of displays from multiple brands, including but not limited to ASUS, Acer, Samsung, LG, HP, TPV AOC, Dell, Lenovo, and more, Such as 3227, 25, 24, 23, 22, 21, 20, 19, 17 inches, etc. VERY STURDY AND SAFEY: This office desk monitor bracket features a sturdy steel structure design, making it extremely sturdy and durable. Compared to other similar computer monitor brackets, our single arm monitor bracket is more than three times stronger, so you no longer need to worry about safety issues. The bracket supports two installation methods: C-clip and perforated, both of which can provide stable support for your monitor. RANGE OF MOTION: This bracket has a wide range of motion an