2 in 1 FLEXIMOUNTS L01 Laptop Desk Mount for 11-17.3 inch laptop with Notebook tray or 10-27 inch computer monitor with Swivel Gas Spring arm,With Clamp or Grommet Desktop Support For 11-15.6 inch Notebook/laptop with supplied notebook tray or 10-24 inch monitor without the tray Free gas springs hovering system Raise, lower, extend, retract, tilt and swivel your screen for ideal positioning. Reduce glare with a simple adjustment. Cable management.Loading Weight-bearing:3.3-11 pounds 85 degrees upward, 15 degrees downward. It can work both clamp and grommet. The mount can clamped to desk within 0.79''-3.94''(20mm-100mm) thickness or grommet to the desk with the size of the hole:0.33''-2.75''(8.5mm-70mm).