This is a sand tray designed to help with fine motor skills to develop writing motor skills as well as help with writing spelling and math. The board is 7.25" tall and 13" long. Each set comes with the following; 1 board, 1 wooden stylus, number tiles 0-10. Sand is not included. Optional add on availble is a set of upper case letter tiles including a-z tiles with 2 of each vowel Also available with this set is a math dice set, with 6 dice with numbers labeled 3 ways and 2 dice with addition, subtraction multiplication and division symbols.