Beautiful translucent colour seashells in 2 sizes and 6 colours with 6 different tactile surfaces. Children will love to touch and feel these shells, describing the differences and similarities as well as discovering the colours and colour-mixing opportunities they provide. Ideal to teach early number concepts such as sorting, matching, comparing, sequencing, patterning and counting. Set contains 36 large and 72 small tactile shells with activity guide in a convenient plastic container. Size: 36 large (54mm) and 72 small (40mm) shells. Age: Suitable from 18 months.