A set of four (4) replacement o-rings for use with the NEO Flex and the Flair 2GO. This set is not compatible with Flair Classic or Signature models. These o-rings are easy to install and will keep your Flair 2GO or NEO Flex sealed for brewing espresso at pressure. Included in this set are: Upper Piston O-ring (Black) Lower Piston O-ring (Red) Pressure Gauge O-ring (Red) Thin Cylinder O-ring (Red)