Magnet Essentials KitThe magnet essentials kit is agreat starter set to teach the basic principles of magnetism. The set includes 14 magnetic wands in 7 colours, each measuring 20cm, 14 magnetic colourful rectangles (6 x 2. 8 x 1. 3cm), 20 jumbo magnetic marbles (3. 4cm in diameter) and a set of 100 steel ringed chips. Suitable for ages 8+ years. The magnetic wands are perfect for the study of magnets and their effects on different materials. The wands are magnetised for