Aristo AR552813 20 BTS Quick Adjustment Compass with Inadjustable Legs (Circles up to 340 mm Diameter, Die Cast Zinc, 2 Replacement Leads and Spare Needle) Forest

The Aristo BTS spring bow compass works precisely and is more than meets the high demands in mathematics and geometry lessons at school and at university The quick adjustment is activated by pressing the two locking pushers and the fine adjustment is made on the centre wheel. When laying aside, the dimensions remain unchanged The compass is made of coloured lacquered die-cast zinc. The grooved head and locking handles are made of plastic With the compass, circles up to 340 mm diameter can be drawn. Needle and lead are attached in a non-slip clamp Box contents: Aristo BTS spring bow compass forest item no. AR552813-20 and 1 box of 2 Refills and 1 piece. Replacement needle in a robust transparent case