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+. Dinosaur Bones Match and Measure Activity Cards Use the Dinosaur Bones with these exciting activity cards. They will encourage children to match, count, compare, order, and measure the bones they discover. Made from durable PVC, the cards are tough enough to use in the outdoor area (including water play). Each set includes 8 cards measuring 275 x 210mm.