Perfect for all those budding palaeontologists, these dinosaur bones, cast from a durable and unique mix, are just waiting to be discovered. Bury them in sand, soil, or even water, and they will instantly appeal to children’s instincts to explore, investigate, collect, compare, and measure. The bones increase in size by 2cm and can be used to introduce the concept and language of measurement, doubling, and halving. The set includes 16 bones, two of each size: 6, 8, 10, 12, 14, 16, 18, and 20cm. Age 3+.