Wide Application: Math geometry tool set are useful which can be applied at home, school and office for architects, engineers, artists, designers, students, teacher and so on. Practical Compasses Set: 2 different style compasses can satisfy needs of drawing circle, metal compass is sturdy and durable, not easy to bend or break during , and the ergonomically designed top of the compass can a comfortable grip for easy control, the related accessories such as pencil, lead refills and eraser make it more convenient for you to . Transparent Rulers: The ruler, protractor are made of high quality 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. Easy to Carry: Student compass geometry kit is designed with shatterproof box for easy of ; has a compact size, and there is a on top, which can be hung and stored without taking up too much space. colour:Blue Material:Metal + plastic Package Contents: 1 x Shatterproof Plastic Box 2 x Graphic Compass 2 x Triangular Rulers 1 x Straight Ruler 1 x Protractor 1 x Pencil 1 x Pencil Lead Refills 1 x Eraser Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.