3 years & up. Appeal to the senses while learning the alphabet and spelling simple words! Commonly used letters are doubled up making it easier to spell out sight words and students' names. Inside each letter is a small disc children can move around to practice fine motor skills. Use the letters on a light table to create glowing words and layer them to make new color combinations. All vowels are red. Includes 38 letters up to 3 1/2" x 4 3/4" and guide.