These are the basic vowels that every girl or boy learns easily: a, e, i, o, u. They are pieces that can be manipulated without difficulty and safely to interact with them by seeing and noticing their shape. Children acquire a very good understanding of letters and can create the form of: a, e, i, o, u and even m is: simple syllables and diphthongs. It contains 20 pieces of natural cork. Recommended age: + 36 months. Dimensions: 14.9x14.9x14.9 cm.