This little comment above to indicate the dimensions of the keyboard that are not mentioned anywhere, not even on the manufacturer's website Logitech which is strange for a keyboard that is supposed to "help to save space on your desk and streamline your workspace ". So here: L = 40 cm, D = 16 cm thickness = 1.5 cm.
I have put that 4/5 because the inscriptions on the keys could be larger and more readable (they are too pale) but it only hinder those who, like me, watching the keys typing !!