These are 12 of our empty Brewcups that you can fill with your own coffee. They are fully recycleable and reusable. These are the same Brewcups we sell our coffee in (except these are empty). They can hold 11-12g of coffee (more than standard KCups). They also have a very fine filter so the coffee can be ground as drip or fine - allowing larger or stronger coffee to be made in a single use machine.