A set of 4 ultra powerful colour-coded giant pole marbles. Which are also clearly marked N and S for easy identification (3cm in diameter). Useful for supervised magnet experiments. While they are colour-coded meaning that students will see them only attracted to opposing poles. Being large, makes for easy handling.
 
Please note: The intended use of these magnets is for educational purposes only. Adult supervision is required at all times. Not suitable for children under the age of 12. Not suitable for craft projects. Seek immediate medical attention if magnets are swallowed or inhaled. 
These are strong powered magnets and can cause medical issues if digested. These magnets are not a toy and are not intended for early learning centres or younger age groups in school or learning or unsupervised environments.