A must for all your dinosaur enthusiasts, these wonderful, tactile bones are guaranteed to inspire and excite. Bury them in sand or soil, place them in the water tray or leave them outside to be discovered. Once unearthed, they will instantly appeal to children's natural instincts to investigate, sort, order and compare. These playful processes provide the ideal opportunity to introduce and practice early maths language in an engaging and relevant way. Durable enough to be used throughout an early years setting including outdoors and safe for use with your younger learners, the set includes twelve dinosaur bones in four different lengths ranging from 2.25" to 4.5".