Perfect Compatibility: These O-rings are specifically designed to fit Breville espresso machine models BES900, BES920, BES980, and BES990. Each pack contains 17 pieces, providing exact replacements for routine maintenance. Premium Material: Made from high-quality, food-grade silicone, these O-rings are BPA-free, ensuring safety and long-lasting durability. They are built to perform reliably in the high-temperature environments typical of espresso machines. Comprehensive Set: This kit includes 5 large blue O-rings for steam or water level probes and 12 small red O-rings for soft connection tubes or NTC probes, addressing all essential sealing requirements for your Breville espresso machine. Easy Installation: Designed for simple and secure installation, these O-rings can be replaced quickly without professional assistance. Their flexibility and precise sizing ensure a consistent, leak-resistant fit. Enhanced Performance: Regularly replacing O-rings helps prevent leaks and maintains proper pressure within the machine, contributing to prolonged appliance life and consistent coffee quality. Color: As shown Material: Silicone Style: B Brewing head + O-ring set / A O-ring set Package Contents: 1 set of coffee O-rings seals Note: The package includes only the items listed above. Other products are not included. Slight variations in color may occur due to lighting and display differences. Measurement may vary by +/- 1-3 cm.