Engineers designed hard hats over in St. Paul, Minnesota, but that doesn’t mean we’re all engineers wearing them. It took me 5 tries before I managed to successfully assemble the 3M hard hat model H-702R so I could visit a construction site in Boston this autumn. Hint: you’ll also need eye protection and a reflective vest.

This 2 min video minute video shows how genius this design is (once you know how) to protect your noggin from falling objects. Ratchet tightening makes it a cinch to put on snugly, or remove. Ask your office supplier for information on buying in quantities.

If you don’t like yellow or white, there are many colors to choose from.