The 42x box includes; 14x Quavers, 14x Wotsits, 14x Monster Munch (5x roast beef, 5x pickled, 4x flamin' hot)
They also have a 40x Walkers box which includes; 10x cheese & onion, prawn cocktail, salt and vinegar and ready salted.
Some may also enjoy these flavours we're thinking of it as a wee investment... For the week :/ (cheeky)
Note that the walkers are individually packaged and in the box whereas the box with the Wotsits etc has outer multipack bags to keep the individual packs separate.
Found in the Dunfermline, Fife store
Edit: The Walkers 40 box is cheaper from Morrisons I believe still.