The ruler is made of for easy measurement. The case protects all tools and stores them in one spot on a backpack or table for easy portability and storage. Convenient and easy to apply to draw precise patterns, and can also accurately measure the length of things. Math kits are given for students to start math learning and drawing. Features -Color:Blue -Material: -Size:20.70X3.10X0.10cm/8.14X1.22X0.04in -Size:12.30X7.10X0.10cm/4.83X2.79X0.04in -Size:12.20X6.20X0.10cm/4.79X2.44X0.04in -Size:10.20X5.20X0.10cm/4.01X2.04X0.04in -A good Geometry teachers and students, which is a good helper when measuring something. -You will have good use experience because of the fine workmanship of this product -Compact size and light weight, portable for students to carry it for daily use -With scale number, ensure the accuracy, excellent and useful drawing tool you -It helps you to improve working efficiency and save time with drawing and measurement projects Package list: 2 x 1 x protractor 1 x straight ruler