This mixed assortment of natural shells are a natural resource that can be used in many ways throughout a setting or classroom. Add the shells to sand and water play as well as small world environments. Also shells can help to develop children's conceptual understanding of big and little same and different long and short few and many heavy and light. Helps children to make sense of their physical worldEncourages mathematical languageContains a mixture of varying colours shapes and sizes. 2.5 Litre tub. Age Suitability: 3 years+ These items are not toys. They are intended for use in an educational environment to support curricular activities.Not suitable for children under 36 months when unsupervised due to risk of ingestion & choking.