The Derwent Scale Divider is a great tool to help with increasing or decreasing the scale of your subject. Use the Derwent Scale Divider to help transform the scale of your image with accuracy and control, transfer measurements from photographs, paintings and more with ease onto paper, achieving accurate proportions every time. It folds away so can easily be slipped into a backpack or pencil case if you are using it outdoors. Reduce or enlarge images in ratios from 4:1 to 1:4.

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. 

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.

Sema Masterbow Compass - Red

The TechnoArt 4-Piece Technical Compass Set includes :

Compass set with extension arm, spare leads and pencil attachment

Compass set with spare leads and pencil attachment.

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

Helix Oxford Compases are the perfect addition to any stationery set.

Sema Quick-Set Masterbow Compass

Quickset compass Grip 2001 design. For circles up to 390mm in diameter

Sema Masterbow Compass - Orange

The TechnoArt 4-Piece Technical Compass Set includes :

NEXX are pioneers in the stationery industry and they strive to create high quality and versatile products like the NEXX Springbow Precision Compass

NEXX are pioneers in the stationery industry and they strive to create high quality and versatile products like the NEXX 6-Piece Springbow Precision Compass Set