This little gadget is so cool. Perfect for all kinds of projects. This comes in a plastic box that opens on the side. Its shaped like a pen, one end is a stylus and other end is a pen that you twist the end for pen to appear. The outside has 6 sides with ruler measurements on 4 sides , inch, 1/100 m, 1/200m, and 1/300 , a leveler on 5th side and clip to put on shirt pocket or pants. Measures up to 4 inches. Three pen refills are included. The stylus end screws off and a small double ended screwdriver is inside. This is just the coolest all in one tool. This stays in my purse. Well made. Comfortable to hold and use. Love this