This model is designed to keep a keyboard separated from the table, freeing the workspace to use a digitizer tablet, a joystick, a steering wheel or similar and to have the keyboard in a comfortable place, it is not practical to write because it trembles due to the The length of the arm and the padding used is quite strong, although it can be made more solid by increasing the fill or printing it in ABS if you want to write on it. I designed it for the Logitech K330 keyboard, although I think it will adapt well to most keyboards, since it can be adapted to measurements between 15 and 18 cm wide thanks to the lower moving part, which fits the keyboard by means of a rubber that joins the 2 parts of the base forming a v. It is 2 cm high at the top and 1 cm at the bottom in the stops that hold the keyboard as you can see in the photos.