This supplementary set of 8 pebbles includes all the extra phonemes needed for Welsh learners. Includes ch dd ff ll ng ph rh and th.Appealing tactile pebbles with engraved lettersDurable stone/resin mix – ideal for learning inside and outdoorsUse in sand water and even mud!Easily washableSupplementary set of 8 pebbles. Works alongside the Alphabet pebble set and with the Yellow Door word-building trays.Safe for children Age 2+