[Update Configuration Files] The cleaning discs are exactly the same as the latest coffee machine accessories. There is no water outlet in the middle of the latest accessories, don't worry, there is a backflush device inside your machine. [Clean Your Espresso Machine] Keeping your espresso machine clean is important to get the best espresso every time. This backflush disc is an effective solution to help you maintain optimal coffee flow. [Wide Compatibility] This backflush disc offers a wide range of compatible devices: for BES870XL BES860XL BES840XL BES450 BES500 BES878. BES880, GRUPPO, SPAZIALE, SAN, WEGA Color: Black Material: Silicone Package Contents: 4 * Cleaning Disc Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.