Large Monitor Arm for 17-57 inch Monitors, Up to 27kg, VESA Compatible, White Brand new, only opened for photography. Reference price: ¥12,999 The item will be shipped with the shipping label directly attached to the product box. Please be aware of this. Thank you. The following is from the official website: 【Professional-Grade Ultra-High Load Capacity Design, Powerful Arm Specifically for Large Screen Monitors】Before purchasing a monitor arm, please check the dimensions, weight, VESA, and the thickness of the desk where you will install the monitor. ① Compatible monitor size: 17-57 inches. ② Load capacity: 2-27kg. ③ Compatible VESA: 75mm*75mm and 100mm*100mm. ④ Mounting method: Clamp type and grommet type. Applicable desk thickness: 12mm～45mm. 【Easy One-Hand Operation, 180° Stopper Function to Prevent Collisions】By combining one-way bearings and gas springs, you can adjust the monitor smoothly with one hand and light force, and it will stop firmly in your desired position, achieving overwhelming ease of adjustment. Up and down ±75°, left and right ±90°, rotation ±90°, and adjustment is possible not only up, down, left, and right, but also forward and backward. *You can use the 180° stopper function to prevent the arm from rotating 360° and hitting the wall (please refer to the instruction manual). monTEK's professional gas spring monitor arm is especially recommended for those who frequently adjust their monitor position. 【Quick Release, Easy Installation from the Top of the Desk】This PC monitor arm is equipped with a quick-release mechanism. First, fix the VESA plate to the back of the monitor, and then simply "click" it into the arm. There is no need for troublesome tasks such as screwing. Furthermore, the installation of the arm is designed to be completed entirely from the top of the desk, eliminating the need to crawl under the desk. This allows even first-time installers to complete the installation quickly and without hassle, providing overwhelming convenience. It is firmly fixed to the desk, preventing the monitor from tipping over and providing excellent earthquake resistance.