This multi-color pen is made of plastic,the 3-in-1 pens can write with different colors,press the color you want,change the color including black,red and blue, push it down and the other one will jump up,assorted colors so you can match your pen to your mood.It is useful and interesting gifts for party favors,school project,students,children,office workers.Rush service and Unprinting service is acceptable.Price above 10000pcs is via Ocean freight.