A reusable coffee filter that allows consumers to use their favorite ground coffee with Keurig Classic Series brewers. Made of mesh metal filter with durable plastic framing. The unit can hold up to about 2 tablespoons of ground coffee. Insert the adapter piece into the Keurig brewer, add your favorite coffee to the My K-Cup filter, and insert the filter into the adapter piece. Removable lid for easy filling and cleaning. Not compatible with Keurig Plus Series brewers.