Feel the ultimate pulling power of magnetism with these incredible Super Magnets. Housed in tough colour coded outer mouldings (red - North blue - South) the design allows children to safely experience first hand the force of neodymium currently the world's strongest permanent magnet!Pack of 2. WARNING! Not Suitable for Children under 3 years due to small parts.This product contains magnets or magnetic components.Magnets can cause serious or fatal injury if swallowed