Staedtler Mars Compass Comfort 552.
· Quick-set push-button mechanism with centre wheel.
· Hinged lead and needle legs.
· 4mm shank for accessories.
· Max circle diameter approx 350mm. 585mm with supplied extension bar.
· Length 170mm.
555 02 Kit includes 552 Compass, extension bar, universal adapter and spare lead box in hinged plastic case with transparent lid.