Vobou Math Geometry Kit Sets 10 Piece Student Supplies with Shatterproof Storage Box,Includes Rulers,Protractor,Compass,Eraser,Pencil Sharpener,Lead Refills,Pencil,for Drafting and Drawings（Navy blue）

Ergonomic handle head, easy to handle and use

How to use compasses:
Open the compasses 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.
Transparent color for better visibility
Easy-to-read inch and centimeter
With plastic durable case, to protect and keep tools in one place in a backpack or desk. Easy to carry and store.