not plastic like the old palm pilots or the cheap signature windows at the self check-out.
& It's a plastic stylus with a rocker "mouse button", an "eraser" end, and replaceable nibs (included). They are made by Wacom but I also have one sold by Cross Pen. I have only replaced the nib once on one stylus years ago. So I wore the pen nib down without damaging the screen surface.
Speaking of surface...
I am looking forward to the new Microsoft Surface Pro tablet with keyboard cover and pen. I am hoping the pen is not that barely useful capacitive kind you find on most tablets.