Drafting compass drawing set. Similar in construction to the Alvin 704 bow compass, with center wheel spindle and replacement lead tube. Drawing compass set also includes a 0.5mm fineline mechanical pencil, a tube of 0.5mm lead, a small white eraser, and a 0.2mm sharpener. Packaged in a see-through, hard plastic case. Assorted colors. Alvin 316 compass sets are perfect for office, schools, classrooms, home, shop.