Add this First, 100th, and last day of school sign to remember your child's years going to school. Each ruler goes from Pre K to 12th Grade. Has an arrow clip so you can easily change the grade. Have more children, Just add additional pencils and can be used by many. The pencils, Ruler and apples are all magnetic and stick right to the board and can easily be changed. Just let us know your childs name and we will have custom pencils sent.