Case of 6 x 75cl bottles. Frontera is the budget label of Concha y Toro, better known for Casillero Del Diablo.
Can't see Carmenere on line and Sauvignon Blanc is showing out of stock.
I bought a case of Carmenere in store yesterday - Sauvignon Blanc was also available.
Tried Carmenere tonight and it's a steal at £3.33 a bottle. Far better than you'll get "free" from M&S.
For the alchies among us, it's 12.5% ABV and the year is 2015.