[ configuration files]The cleaning disk are exactly the same as the latest accessories of the for coffee machine.There is no water outlet in the of the latest accessories, 't worry, there is a backflow device inside your machine. [Clean Your Espresso Machine] your espresso machine clean is essential for the of espresso time. This backflush disk is a effective solution to help your maintain optimal coffee . [Widely Compatible]This backflushing disc, providing a wide range of compatible devices: for BES870XL BES860XL BES840XL BES450 BES500 BES878. BES880, GRUPPO , SPAZIALE, SAN , WEGA Colour:black Material:Silica Package Contents: 4 * Cleaning Disc Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.