・Orders are generally shipped on the same day if payment is received by 12:00 PM, but there may be times when shipping is not possible without notice due to sudden illness or other unforeseen circumstances. In such cases, please request a cancellation. ・Support information will be provided after purchase if needed, as discussed in "Mamushi's Flea Market Talk." If you are interested, please search for "The Reality of the Size of O-rings for De'Longhi Extraction: Summary" before purchasing. In conclusion, this size fits the diameter perfectly, but while it is optimal for the generator, it is a perfect fit for the extraction unit, so greasing is necessary for load distribution. Reference) ESAM Extraction Unit Breakdown Diagram https://www.ropressocafe.ro/piese-espressoare/delonghi/magnifica-esam/garnitura-grup-si-contrapiston-delonghi-magnifica-rosie-5332149100-p726/ ECAM Extraction Unit Breakdown Diagram https://www.ropressocafe.ro/piese-espressoare/delonghi/magnifica-esam/garnitura-grup-si-contrapiston-aparate-de-cafea-cu-rasnita-delonghi-originala-neagra-5313238581-p45619/