These durable phoneme frames are used for building words from 2 to 6 phonemes in length with foam magnetic letters. Each frame provides an outline or template so that children can see that words are made up of different phonemes, and that phonemes can be represented by one letter or in the case of digraphs more than one letter. The variety of phoneme frame sizes means that children can begin with simple VC and CVC word forms, and build up to more complicated structures as their experience and confidence grows. Each box contains 22 magnetic strips of different sizes.