This versatile card set allows younger kids to enjoy discovering and manipulating the alphabet cards, while older children can practice spelling words and discover word patterns. Uppercase letters are printed on one side of the cards, with lowercase letters on the other side. The set contains four cards of most letters for multiple word building. Vowels are printed in red for easy recognition, and bonus vowel cards teach long and short sounds. Ages 4 and up. Contents: 126 Double-Sided Letter Cards and Activity Guide.