Staedtler 964 36 Triangular Ruler Drafting Set Mar

The side of the ruler has been applied to a mirror finish, so you can draw precise lines. In addition, the wick is less likely to release so your drawing will not be dirty. For use with pencils and mechanical pencils; 45° / 60° pairs; Mirror finish 36cm 45° / 60° Pair, No Graduation, Mirror Finish