The TechnoArt Blackboard Compass and Divider is the perfect addition to any classroom.

This large wooden compass is designed for use with marker pens such as Posca markers or Sharpies. Attach it with the rubber suction device to a surface such as a wall or window and it will rotate freely around that point, allowing you to draw perfect circles.Features an adjustable holster which grips marker pens of various sizes - just insert the pen and twist the screw to tighten.Suitable for drawing circles up to 40in.

Ideal for school, college or office work, this Student Drawing Set of 5 from Jakar includes a 1-138mm long self centring geared head compass with a knee joint, swivel shoulder needle unit & pencil attachment, 1 divider attachment, 1-92mm long reversible spring bow for pencil/pen divider work, 1 knee-joint lengthening bar and 1 lead container with 2 leads.