Features: *Made of material, and practical to use. *For for NUOVA for SIMONELLI APPIA 1/2/Life espresso gasket for groups are made from silicone. *This makes it better than rubber gaskets, since silicone doesn't have any smell or taste and are easy to change in and out. *This gasket so it can retain the strength of a rubber gasket can also create a good seal effortlessly. *The gasket will determine the “lock-in” position of the portafilter handle. Ideally you want the handle to lock in directly towards you (5 o’clock to 7 o'clock position). If the gasket is too thin it will lock in too far. If the gasket is too thick it will not lock in enough. Specifications: *Product size: Approx. 72mm (OD) 57mm (ID) 8.2mmThick) *Product weight: Approx. 12.5g *Colour: Black *Material: Silicone rubber *Machines fit: All for for NUOVA for SIMONELLI APPIA 1/2/Life Package Contents: 1x Silicone for RING