YBoCH Compass Set 7 Pieces Math Geometry Kit with Shatterproof Storage Box-Compass Protractor Rulers Pencil Lead Refills Pencil Eraser for Students and Engineering Drawing

Ideal compass set: 1.Geometry drawing tools kit for students of different grades at school 2.Ideal gift for school students 3.Easy to take to class and to store in the classroom and at home How to use: Open the compass to the radius desired for your circle. Place the compass point on a piece of paper where you would like the center point of the circle to be. Place the point of the pencil/lead on the paper. Rotate the compass to mark a circle on the paper with the pencil. Draw without lifting the point of the compass off the paper. Specifications: Clear and easy to identify, giving you a clear measurement experience Help you measure length and degree conveniently Great for Drawing Circles Using Study Compass and Writing,Ideal gift for school students The ruler has the toughness and isn't easy to break Easy to take to class and store in the classroom and at home Case dimension: 9.96*4.72*1.02"(253*120*26mm) Material: Plastic Package Includes: 1* Shatterproof Box 1* Graphic Compass 2* Triangle Rulers 1* Straight Ruler 1* 180° Protractor 1* Pencil 1* Eraser 1* Pencil sharpener