Different fillings! The chocolate covered had chocolate fillings! There was also some with er.... my dictionary says dulce de leche. Caramel-y stuff. And pistachio, vanilla, cream... it's like Berty Botts ever-flavour bean, but tasty and with loads of chocolate :) They also do the classic jam and sugar ones, but I think we're all bored to death with them, really... ;) Except for my boss! He got a classic one.