3 years & up. Use these Soft Foam Color Coded Magnetic Uppercase and Lowercase Learning Letters to introduce the alphabet and early literacy skills to your children. These color-coded letters differentiate consonants from vowels. Children can start basic word building, practice letter sounds, and increase vocabulary. This set includes two sets of both upper and lowercase letters for a total of 104 letters. Bucket is included for easy storage. The approximate height each letter is 1.75"