Feature: 1. APPLICABLE MODELS: This backflush disc is suitable for BES810BSS, BES840XL, BES878BSS, BES880, BES870XL, etc. Check the model for better fit! 2. SILICONE MATERIAL: Made of food grade silicone, this cleaning disc is soft and non toxic. Helping extend the lifespan of the machine. 3. MAIN FUNCTION: Backflush cleaning disc can effectively remove fats and minerals from coffee, extend the service life of your coffee machine, and maintain optimal performance. 4. EASY TO USE: Whether you are a professionals or a family coffee enthusiast, this coffee machine cleaning tool is easy to use. 5. 4PCS: There are 4 pieces backflush discs in the package that can be used for a long time and make replacements. Specification: Item Type: Coffee Machine Backflush Disc Material: Silicone Applicable Size: Approx. 54mm / 2.13in Applicable Models: For BES810BSS, BES840XL, BES878BSS, BES880, BES870XL, etc. Color: Dark Grey Weight: Approx. 30 g / 1.1 oz . Package List: 4 x Coffee Machine Backflush Disc