330ml/4.0%.
Noticed this fantastic craft apple cider (with a ginger twist) from New Zealand on special in-store and the price seems to be in the app nationwide. Zeffer overall I'd say is the best craft cider you can get your hands on, even if the Ginger Beer one isn't their best, at this price it's a steal. I'd also recommend the Apple Crumble, which is probably my favourite cider in the world.
I'm assuming this is at BWS?