Perfect Compatibility: These O-rings are specifically designed to fit espresso machine models BES900, BES920, BES980, and BES990. Each pack contains 17 pieces, providing the exact replacements needed for routine maintenance. Premium Material: Made from high-quality, food-grade silicone, these O-rings ensure safety and durability. They are engineered to withstand continuous use in 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 probes, covering all essential sealing requirements of your espresso machine. Easy Installation: Designed for simple and secure installation, these O-rings allow quick replacement of worn or damaged seals without the need for professional assistance. Their flexibility and precise sizing ensure a reliable fit every time. Enhanced Performance: Regular replacement of O-rings helps prevent leaks and maintains optimal pressure within your espresso machine. This contributes to prolonged appliance life and consistent coffee quality. Color: As shown Material: Silicone Style: A O-ring set Package Contents: 1 set of coffee O-ring seals. Only the above items are included; other products are not part of this package. Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3 cm.