Decent little pen
Good to have on your keyring for an emergency. You can actually unscrew the top part meaning you don’t have to detach it from a split ring in order to get it off your keys. The mechanism feels a little loose, like the tolerances are a bit high. But I guess that’s to be expected with such a small pen. Worth the money? Probably not - I’d buy a cheaper keyring pen or a better proper pen.