ETA hand2mind Student Math Geometry Compass, Silver, Precision Tool for Geometry, Math, Drafting (Pack of 10) Students can draw perfect circles every time with this math compass set Draw circles, angles, and measure length with this circle math compass The compass has a self-centering mechanism, an easy-grip top, and a safety point, making it perfect for classroom use Compass features self-centering mechanism Includes 10 compasses