A comprehensive selection of magnets and materials supplied in a plastic container for convenient storage.The kit Includes:Alnico bar magnets Alnico button magnets Round and square alcomax bars Ferrite blocks and rings Chrome steel horseshoe magnet Alnico horseshoe magnet Iron filings bubble Pair of plastic-cased bar magnets Coloured squares of magnetic rubber Chrome steel bars A metal disc setPlotting compasses.Dimensions of the case: 320mm x 220mm x 50mm.Age: Suitable for use with children under adult supervision.