Fortunately, I was already using my laptop on a standard-height desk, but having the screen at desk height (30″ off the floor) was the major source of neck pain for me. At its lowest setting (the knob all the way to the left), it raises my 13-inch MacBook Pro about 5-3/4″ off the table (measured to the bottom of the aluminum body that covers …

https://www.amazon.com/Rain-Design-12031-Adjustable-Notebook/dp/B00LSU4QD8