Use your own gourmet ground coffee in a Keurig brewer--Just fill the Reusable filter with your favorite coffee and pop it into 

your brewer.....Just like a regular K cup

• 100% BPA free

• No need to remove or swap out the filter holder; Built-in permanent stainless steel micro mesh filter

• Works in Keurig B40, B45, B50, B55, B60, B65, K40, K45, K50, K55, K60, K65, B70, B71, B76, B77, B79, K70, K75, K77, K79, Breville

Kcup, Mr. Coffee Kcup , Cuisinart Kcup

• They are NOT compatible with KEURIG B30 B130 B150 B155 or any 2.0 System

• They work only for 1.0 Keurig System only.