Staedtler Mars Compass Basic 554.
· Precision compass with telescopic extension bar.
· Friction head for smooth radius setting.
· Hinged lead leg and needle shoe.
· 4mm shank for accessories.
· Max circle diameter approx 360mm and up to 470mm using telescopic extension bar.
554 T01 Kit includes 554 Compass, universal adapter and spare lead box in hinged plastic case with transparent lid.