Du-All Art & Drafting Supply

Jakar Blackboard Compass. 17.5" Tall and capable of drawing large arcs and circles. Features suction cup for firm positioning on nonporous surfaces, including whiteboards and glass. Includes a metal needle point that can be used as the center point or dividing point.

Maximum Radius: approx. 24.25"
Minimum Radius: approx. 4"