Use Rainbow Pebbles® to develop fine motor skills, sort and classify, create designs, develop measurement concepts, make patterns, create sequences and build stacks. Children will be fascinated by the smooth, warm surface of these odd-shaped, plastic pebbles. Tweezer included to help develop pincer grip. Also includes activity guide for learning ideas. Sort and sequence these pebbles to develop early math skills. Conveniently packaged in a storage jar with lid and carry handle.