Staedtler 12" Adjustable Triangle
Clear acrylic with smooth edges. Protractor section is graduated in 1/2 degree increments from 0 to 90 degrees. 0.118" thick clear acrylic prevents warping and provides maximum stiffness. Magnifier allows for precise, easy to read settings. 1/2 degree increments on protractor. Beveled straight edge.
This triangle has a 12" inking edge.