Phonics PebblesThe Phonics Pebbles Word building Set is designed to support children's phoneme recognition and blending skills through hands on exploration. This comprehensive set includes 64 durable pebbles, each approximately 3. 8cm in diameter, covering 44 phonemes to suit a range of early literacy needs. Cast from a stone resin blend, they are weather resistant and ideal for use in sand, water, or soil perfect for both indoor and outdoor phonics instruction.