Didax:  A fun way to learn to phonics. Learn letters and build words with these easy-to-connect Jumbo Alphabet Unifix Cubes. Young learners can sing the ABC song while pointing to each letter or create their name with the cubes.Set includes 27 alphabet cubes (two Y cubes are included; vowels in red and consonants in blue) and 3 blank cubes.1 1/2" on all sides.Activity ideas included.