Teach kids letters in a multi-sensory way! These cubes are specially made to fit together to form whole words. The set is adapted directly for teaching English words as part of phase 2 of phonics (sound) exercise, where you start with a set of letters and create words from them, and gradually add more letters to create other words. The set contains 4 blocks of each letter or pair from phase 2 of the phonics exercise. Each cube measures 2 cm.