Construction Worker Folding Wood Ruler Puzzle

I was extremely fascinated with these wooden, folding rulers. I loved extending them in different ways, fully extending them and building little constructions with it. I had a blast and yes, I was super easy to entertain as a kid (things changed though). Now I could starting to play with this ruler puzzle again without embarrassing myself in public. Match the ruler’s nobs with the 42 two holes on the board. I you’re good in math, that helps
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