Do you want to have straightedge triangle ruler protractor? If so, our drawing math measurement ruler set is carefully prepared compatible with you. Can be applied compatible with home and office using, students and teachers using. You deserve to have it.Features- Color: Golden.- Material: Brass.- Size: 10.10X5.70X0.15cm/3.97X2.24X0.06inch (protractor);14.00X6.20X0.15 cm/5.51X2.44X0.06 inch (triangle ruler);13.00X3.00X0.10 cm/5.11X1.18X0.04 inch (straightedge).- Using brass material, and firm, suitable compatible with measuring use.- Suitable compatible with architecture, applications, painting, drafting, technical illustration, measurement, etc.- The numbers are clear, which are easy to identify, and then you can read quickly and with great accuracy.- Lightweight and portable, it is very convenient compatible with you to carry with in everywhere you like.- Simple in structure, easy to use, strong and smooth surface, you can use it with confidence.Package list: 3 x straightedge3 x triangle ruler3 x protractor