Multi-Function Drawing Architect Scale Ruler

Features  An innovative pocket-sized drawing tool for designers, artists, architects, periodical enthusiasts, mandala enthusiasts, illustrators, tattoo artists, students and creative professionals.  It doesn't go through the holes in the paper because it doesn't have sharp points, and although it has a specially designed rolling base, it's still stable enough not to move around.  Not only can it be used as a straight and curved metal ruler, it is also used as a protractor.You will be able to draw perfect circles and patterns effortlessly  The isn’t just a stationery tool, it’s a real tool too. It packs a pen-stand, rounder/compass, wrench, scale, bottle opener, and drawing guide all in one.