The protractor for geometry are made of iron and ABS material, translucent color allows for a clear view of numbers and letters on the page; With the clear mathematics ruler, you can measure an object easily. A perfect your kids and friends, easy to take to class and to store in the classroom and at home. Just choose it as school season gift or Christmas gift. Features - Color: Green -Material:Iron, ABS -Size(Compass): 12.00X2.50X1.20cm/4.72X0.98X0.47in -Size(Ruler):16.00X2.70X0.10cm/6.29X1.06X0.04in -This Tool Set 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, civil engineering, school supplies, etc. -It will work architecture, score measurement, art design or drawing templates as school 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 Compass 1 x 15 cm Ruler 1 x Protractor 2 x Triangle Rulers 1 x The Eraser 1 of Refills 1 x Pencil Box