DESCRIPTION: . The OLM Mathematicians Ruler is a standard 30 cm ruler which gives you quick and easy access to a variety of key mathematical hints and formulas . The ruler is perfect for student u...

Non-needle safety point making it safer for children to use. Self-centering with easy to use grip. Large pencil hole. Available in a variety of colours

This Celco Set Square is perfect for all artists, designers, architects and mathematicians. It has been designed with a tracing edge that will let you use it with fine, mechanical pencil lead and ink.

Traditional die cast metal compass