Screw hairs...If you don't have a microscope..go to $ store get a magnifying glass, and tear a little piece of frosted leaf. top and put on paper.. that way you can see it better.. I even bought $ reading glasses..the strongest 3.00..works in a pinch.. I like my trichs (crystals) 50-50- amber-cloudy.. cloudy = headstone... amber = couchlock.... Luck..