The ruler for geometry is made of material, and allows for a view of numbers on the page; With the brass mathematics ruler, you can measure an object easily. A perfect present for your friends, easy to take to class and to store in the classroom and . Just choose it as a season present or a Christmas present. Features -Color:Golden -Material:Brass -Size:15.60X3.00X0.10cm/6.13X1.18X0.04in -This ruler tool is perfect for students, teachers, math experts, architects, engineers, artists, designers at any level. -It’s a good helper for artists, engineers, designers, architects, students and others. -Multi-functional and versatile, it can be used for a variety of fields, such as construction, professional applications, architecture, engineering, learning supplies, etc. -It will work architecture, score measurement, art design or drawing templates as work. -Portable and light, easy to store, not taking up any space, thus you can store it in your stationery bag. Package list: 1 x Straight Ruler