This accessory box contains 12 classic magnetic Magformers hexagons which contain free-spinning neodymium magnets safely sealed in every edge. The pack is the perfect stocking filler or birthday present for any child who has an existing Magformers collection. The pieces are compatible with every Magformers set in existence. The perfect christmas or birthday present - extra magformers pieces are always welcome. Helps children to scale up whatever theyre making. Compatible with all other magformers sets. Magformers pieces use strong neodymium magnets and tough abs plastic. Educational, fun, super strong and endlessly creative. Size H13.6, W11.8, D8.3cm. For ages 3 years and over. WARNING(S): Not suitable for children under 3 years old. Only for domestic use.