Introducing the Caffewerks Silicon Machine Gasket Seals – the ultimate solution in creating a reliable seal between the portafilter and the group head. This seal prevents any leaks or pressure loss during the brewing process, ensuring that water flows through the coffee grounds evenly and consistently. Crucial for the proper extraction of espresso, the gasket seal plays a pivotal role in achieving consistent and high-quality coffee shots. The softer silicone material used in these gaskets makes it easier to engage and disengage the portafilter from the group head. This reduces the effort and strain on the wrists, making the espresso-making process more enjoyable and user-friendly. Crafted with high-quality materials, the gasket seals are designed to withstand the high temperatures and pressures found within espresso machines, providing for long-lasting use. Elevate your coffee experience to a whole new level with Caffewerks Silicon Machine Gasket Seals! Caffewerks Espresso Machine Gasket Seal Features Leak-Free Feature - Ensures a tight seal between the portafilter and group head, preventing leaks and pressure loss. Premium Food-Grade Silicone Material - Makes it easier to engage the portafilter while reducing wrist strain. Flexible - Fits various espresso machines making it a versatile choice for a wide range of espresso enthusiasts, either for professional or personal use. The set includes: 5 x Caffewerks Espresso Machine Gasket Seals (5 per pack) Specifications Material (All types) Silicone Variation Ring Size Dimension Breville 54mm - Purple 54mm Group E61 - 8mm - Orange 57mm 73 mm x 57 mm x 8.5 mm Group E61 - 8.5mm - Yellow 57mm 73 mm x 57 mm x 8.5 mm Simonelli 9mm - Blue 56.5mm 71 mm x 56.5 mm x 9 mm Available Seals 54mm Breville - Purple E61 - 8mm - Orange E61 - 8.5mm - Yellow Simonelli 9mm - Blue