The Kapro 446 Rafter Square has a solid aluminium body, and is fully anodized for greater durability, accuracy, and corrosion resistance. The markings are permanently laser etched for longevity, and are easy to see. A convenient conversion table is printed on the back of the square, and also functions as a 0°-90° protractor scale. 

1 x Kapro 446 Rafter Square 4.5in.