Jumbo
Available in four sizes for scribing circles up to 80" diameter
Folding type design - three smaller models will fit conveniently into a shirt pocket
All have sturdy friction joints to maintain rigidity and accuracy
Made from lightweight, rustproof aluminum for long wear
Soapstone crayon installed in each radius marker
Scribe holder will accept round, square or flat soapstone crayon, pencil or steel point scribe