A Professional s Choice - Alvin has been the professional s choice for drafting tools and drawing supplies for over half a century. since 1950 we have brought quality and value to our customers. Grade A Materials - The blade is made of grade A aluminum and is 1.5 inches wide and 1.6mm thick and you ll feel safe knowing that the head molding will be tough. Graduated with 16th on both sides - You won t have a hard time with measuring any side or angle. Made for Accuracy and Longevity - Your measurement will be accurate and the instrument made to last. High Contrast Visibility - The 1/16ths white on the head molding will make the numbers visible to anyone who uses it. Proudly Made in China