These things are EXTREMELY flimsy and mine came so out of whack that after 10min of trying to make adjustments so they wouldn't sit on my head at an angle I give up. If you're buying them for a costume or something they'll be fine but I think they are terrible for everyday use. They might be metal but they're so delicate it feels like they're made out of plastic. Overall these glasses are just "ok", even for $5.