Description This item is well-made of premium brass material for and practical use. These rulers can be applied for home and office using, school students and teachers. Scales are very clear and accurate, and it can be used for a long time.-Protractor for Geometry Features -Color: Golden -Material: Brass -Size(Triangle Ruler): - Geometry Ruler Tool12.20X7.10X0.20cm/4.79X2.79X0.08in -Size(Protractor): 5.70X10.20cmX0.19cm/2.24X4.01X0.07in-Geometry Ruler -Using high-class brass material, and firm, suitable for measuring use.- Measure Rulers -Suitable for architecture, professional applications, painting, drafting, technical illustration, measurement, etc.- Geometry Measurement Ruler -The numbers are clear, which are easy to identify, and then you can read quickly and with great accuracy.- Measurement Protractor -Lightweight and portable, it is very convenient for you to carry with in everywhere you like.- Measuring Tool -Simple in structure, easy to use, strong and smooth surface, you can use it with confidence.- Outdoor Measuring Rulers Compact size and light weight, portable for students to carry it for school use.- Brass Measuring Ruler Convenient to measuring, portable to use, and sturdy for student, teacher and painter.- Measurement Tool It is useful measuring tools for artists, designers, architects, engineers, students.- Geometry Triangle Ruler You will have good use experience because of the perfect workmanship of this product.​- Brass Triangle Ruler Kit Different kinds of gauges to meet various purposes. The scale is clear and easy to read.-Geometry Set