Regularly clean the espresso machine to continue enjoying optimal espresso performance. This cleaning disc helps easily clean the interior of your espresso machine. The cleaning disk is compatible with select machines and features a hole in the middle to allow water purging during use. Using a backflush disc with espresso cleaning tablets helps extend the life of your machine. The 54mm cleaning disc can be used with corresponding coffee machine cleaning tablets to effectively remove coffee oils, residue, and scale. Designed with practical espresso machine maintenance in mind, this cleaning disc is a must-have for home and professional use. Simply insert the cleaning disc into the portafilter, install it into the espresso machine, and run the cleaning cycle. Includes 54mm black cleaning disc compatible with models such as Duo-Temp Pro, Barista Express, Infuser, Barista Pro, Barista Touch (BES870XL, BES810BSS, BES840XL, BES878BSS, BES880), and most espresso machines with 54mm portafilters. Color: black. Material: silicone. Size: 54mm. Package includes: 4 x Espresso Cleaning Discs. Package contents include only the items listed. Light and display settings may cause slight color variations. Measurement may vary by +/- 1-3cm.