The package includes: A set of math kit includes 2 triangles, 1 ruler, 1 protractor, 2 compasses, 1 pencil, 1 pencil refill, 1 sharpener and 1 eraser, meet your different needs. Storage box : all in a transparent plastic case and located in the right place, help you organize easily and don't get lost, you can put it anywhere you want. Best gifts: Enough tools for teachers and students of all levels, also a perfect gift for kids and homeschool math students to learn drawing. Math compass: draw up 'to a circle of 11.8 inch / 30 cm in diameter, pack of 2 pieces, which you can share with your friends, can also be used as a pencil for writing. Ruler set: plastic transparent, light color allows you to see the words, letters and numbers on the page through the protractor, helping you measure more accurately. Features: - Suitable for most stages of students, teachers, designers, artists, etc. Meet your need for circle drawing and angle measurement. - On the top of the storage box has a hole, which can be hung on the schoolbag or the place where you want to hang, helping you save space. - Made of high quality plastic and metal, durable and won't be damaged easily, can be used for a long time. > - Comes with an eraser and a sharpener, you don't need to spend extra money to buy it and don't worry about forgetting to bring it. - It is a necessary tool for cutting angles in half, constructing geometric shapes, like perpendicular lines, parallel lines, triangles, circles, rectangles and virtually any geometric shape. Specifications: Color: Black Material: Metal, Plastic Compass Size: 4.4 inches / 11.2 cm long Pencil size: 3.4 inch / 8.7 cm long Eraser Size: 1 0.6 0.3 inch / 2.6 1.5 0.7 cm Sharpener size: 1 0.6 0.4 inch / 2.6 1.5 1 cm Storage box size: 7.3 3.5 0.8 inch / 18.5 9 2 cm Package includes: 1 set of geometric compasses Warm Tips: 1. The drawing compass has sharp parts, please use it carefully and keep them away from baby. 2. Please allow 1-2mm differences due to manual measurement.