Pacific Arc Spring Bow Compass w/Uni Adapter & Ruling Pen 6.5"Spring bow compass. Features a double break-leg design. Includes a Uni Adapter to hold pencils and some other drawing instruments. Also includes ruling pen.
Pacific Arc Universal Compass Adapter 4.0mm
Faber-Castell Quick Set Compass Stream Series Black Stone
Pacific Arc Quick Speed Bow Compass w/Uni Adapter 6"