The classic range is actually from Classic Fireworks, a display company based Blackburn, who work with Firework Factory on displays.
The Firework Factory is a major retail stockist of the Classic Range, although Classic do have their own shop too ( I didn't know that until yesterday!)
yeh i know of thier website however they dont have an online shop or even mention one that i recall and google doesnt come up with anything bigger than 3 inch shellhead rockets which i thought were the biggest you could get myself
in all honesty even though i have bought what i have of them recently im not a fan of them due to the fallout problem , they are sadly the only way of getting a decent size high break into a display though