REF: NA2 NA-2

has a rubber ring more than NA-1 does. They’re patent-protected types that punch by the coffee machine blades, then the capsule will get three holes through the bottom automatically, and let the water go into it and through the coffee inside, they are completely compatible with all Nespresso Original machines

However, based on the stable pour design,

this capsule is able to extract stronger espresso or lungo than most capsules even than the                                                                                        Nespresso originals.
It is an ideal solution to pack the finer coffee and impress your customer with the great flavor it creates with the existing Nespresso                                                                                        system.