The sand paper letters are essential tools to associate a sound with its symbol.
By tracing the letters with his hand, the child is exercising his tactile senses and forming muscle memory while associating the letter with its sound. Such experience of learning letter by letter, recognizing them by beginning, middle, and ending sound of a word, is necessary before the child would go on to read words by their sounds naturally.
Check the stock status before ordering please. If this product is back ordered, the estimated delivery 1-2 weeks.