Take a hands-on approach to learning letters with our tactile Alphabet Pebbles. Specially cast from our unique stone and resin mix, these popular alphabet pebbles appeal to children's instinct to explore, investigate, sort and collect. They are durable enough to be used in sand, water and outdoors. Each pebble is engraved and painted with a letter, and will not fade over time. Pebbles measure between 30–45mm. Safe for age 2+.