These filters work for Keurig 1.0 and 2.0 machines, and do not need any clip or stickers or hacks! Fully compatible! Compatible with Keurig 1.0 & 2.0 Models: K200, K300, K350, K360, K400, K450, K460, K500, K550, K560, K31, K40, K44, K45, K50, K60, K66, K70, K77, K80, K100, B31, B40, B44, B50, B60, B66, B70, B77, B100, B140, B200.
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