These Natural Sorting Stones have been created to inspire children's natural curiosity as they explore and sort. They are ideal for use in treasure baskets and sensory play activities due to their tactile texture. They also suitable for use in sand water and outdoors due to their durable composition.Promotes colour and size recognitionDevelops mathematical languagePromotes construction skillsIncludes 12 stones in 3 different sizes and 4 colours. Largest stone measures 80mm and the smallest measures 55mm. Storage bag also included. Age Suitability: 2 Years +