Our Retro Portable Brass Protractor is made of high quality brass. Pocket size makes it portable and convenient to take anywhere. Measurement range: 0-180 degrees. Math geometry tool is useful tool for architects, engineers, artists, designers, students, teacher and so on. Good for students in school and home use. Perfect gift for students or employees award programs. Custom LOGO is welcome and your LOGO will be laser engraved. Price includes shipping cost to CA. QTY over 5,000 is by ocean. Quick response, fast delivery. We will always be online. Make your order today!