Those are the superior Agen prunes coming directly from Agen in France which are pitted and dipped in dark or milk chocolate, and put in boxes of 6 prunes. They have a hint of Armagnac in the preparation, about one drop per prune.
They are on special offer because the dark chocolate tempering is the summer tempering, which is beige in colour instead of dark colour. It doesn't affect the snap but it gives it a bit more of a different texture. (See my video on my youtube channel about the darling tempering).
There are only a few boxes for the website.