I'm trying to figure out what the barber used when they gave me an old-fashioned shave. I know she used a straight razor but before that she used some sort of electric razor to thin out my facial hair, it fit into her palm and I believe it utilized rotating cylinders in the middle to trim my hair down (I have very tough facial and I figured this device could help me when I use a straight razor at home). Any anons out there have any idea what it could be?