Nine Shots on a Board, also known as a NOAB, has nine preloaded mortar tubes imbedded into to a thick board. It only needs to be lighted once, just like any other 500 gram aerial. Each mortar will shoot up, one by one, with usually having a finale of rapid firing of the last three rounds. These fireworks send 3" shells into the air. Each shot contains the largest amount of pyrotechnic material allowed by law for consumers. For those of you that must have the biggest and best fireworks, these are for you. It doesn't get any bigger than this.