1. Update the configuration file The cleaning disc is exactly the same as the latest accessory of the coffee machine. There is no water outlet in the center of the latest accessory. Don't worry, there is a backflow device inside your machine. 2. Clean your espresso coffee machine Keeping your espresso coffee machine clean is crucial for making the best espresso every time. This backflush disc is an effective solution to help you keep the coffee flowing smoothly. 3. Wide compatibility This backflush disc offers a wide range of compatible devices and is suitable for the following models: BES870XL, BES860XL, BES840XL, BES450, BES500, BES878, BES880, GRUPPO, SPAZIALE, WEGA. - Color: Black - Material: Silicone - Package contents: 4 cleaning discs Only the above package contents are included, and other products are not included. Note: Light and different displays may cause the color of the items in the picture to differ slightly from the actual product. A measurement error of plus or minus 1 - 3 centimeters is allowed.