The classic dreidel is a four sided spinning top made of wood, plastic, or the proverbial clay. On the four sides of the dreidel appear four letters from the Hebrew alphabet—nun (נ), gimmel (ג), hey (ה), and shin (ש). These four letters are an acronym for "nes gadol hayah sham"—"a great miracle happened there."
The letters that appear on four sides of the Dreidel.
In Israel, the actual setting of the Chanukah miracle, the last letter, shin, is substituted with a pey (פ), which stands for "po"—"here."