Adjustable Spline In Stock Now

36" adjustable spline for drawing curves.

Acu-Arc Adjustable Curves are made of incredibly flexible, shape-holding butyrate plastic that can be finger-shaped to any curve for extremely accurate drawings. One edge is flat to surface for pencil, and the other side has a bead for ruling pen. The adjustable spline is similar to adjustable ship curve excepting it is longer, wider and thicker.