📐 Elevate Your Drafting Game! Modern silver finish that complements any workspace. Weighs only 5 ounces, making it easy to carry anywhere. Crafted from high-strength aluminum alloy for unmatched durability. Inch and centimeter markings for global usability. Ideal for architects, engineers, and students alike. 12" Flat Ruler 45/90 Triangle The Mr. Pen Metal Geometry Set is a premium 4-piece drafting kit designed for precision and durability. Made from a high-strength aluminum alloy, this set includes a 12" flat ruler, two triangles (30/60 and 45/90), and a 6" protractor, all featuring accurate inch and centimeter markings. Perfect for professionals and students, this lightweight and stylish set is a must-have for any workspace.