Practice vowel phonics sounds with this great hands on COKO bricks Vowel Sounds. With 20 pieces, the COKO bricks will put the fun back into literacy learning. Extend the potential with a set of COKO Lowercase Letters (249094) and help students to identify and distinguish vowel sounds such as ay, ee and oy. With foundation script font, the set includes a handy CD and teachers notes. Base plate available separately (not included) and bricks are compatible with LEGO DUPLO. Ages 4yrs .