I am feeling deeply helpless.

I am looking at the Ikea instructions for these "thyge frm f tbl tp 120x60 902 937.77" Ikea legs I bought four years ago.

I need to raise them by about a centimeter.

This is from the manual. Ikea is dedicated to never using words, and I CANNOT FIGURE OUT WHAT THIS MEANS. Turn clockwise to lower, turn counter-clockwise to raise? Turn clockwise to loosen, raise or lower to desired height, turn counter-clockwise to tighten??