Yet others can even be folded to suit the circumstances, depending on the needs of the user ! Nah, am not talking politics here, rather, of an indispensable measuring tool used by craftsmen of old, especially carpenters.
The foldable ruler came in various lengths, but the most common was a two-foot long type with 4 sections. When fully collapsed, it was 6 inches long, and could be slipped into a pocket. In fact, any Tukang Kayu worth his wood – professional or amateur – “needed” to subtly (but prominently) display this tool, to authenticate his competence. LOLX.
I have not seen this rule for decades now – perhaps these days, fewer and fewer people are “hands-on”.