Find the best selling, loudest firecrackers you can buy online in the fireworks store online. Shop the biggest firecrackers from World Class or Boomer with the best selection online. World Class firecrackers are made with the finest firecracker powders you can buy. Top grade paper and fireworks fuse from only the best suppliers. Less duds per pack over all other brands. Find the loudest firecracker bangs on the market under the World Class brand name. Shopping for more bangs for the buck? Check out the Boomer brand, a bargain shoppers paradise for firecrackers. Firecrackers sold by the pack cases or the rolls.