Update configuration files]The cleaning disk are exactly the same as the latest original accessories of the for Breville coffee machine.There is no water outlet in the center of the latest accessories, don't worry, there is a backflow device inside your machine. [Clean Your Espresso Machine]Keeping your espresso machine clean is essential for get the best shot of espresso every time. This backflush disk is a effective solution to help your maintain optimal coffee flow. [Widely Compatible]This backflushing disc, providing a wide range of compatible devices: for BREVILLE BES870XL BES860XL BES840XL BES450 BES500 BES878. BES880, GRUPPO IZZO, SPAZIALE, SAN MARCO, WEGA Colour: black Material: silicone Size: 54mm Note: Light shooting 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 +/- 1-3cm.