Rotring-170mm-Master-Bow-Compass-Rotring-S0676580-The-Rotring-S0676580-is-a-rapid-adjustment-compass-with-fast-&-precise-radius-adjustment-Ergonomic-grips-&-handhold-depressions-ensure-a-positive-grip-when-drawing-Rotring-Master-Bow-Compass-Length-170mm-S0676580