Clean Your Espresso Machine -- To get the best shot of espresso every time, your machine needs to run smoothly. Regularly backflushing the valve system will help maintain optimal coffee flow. Use our cleaning disc compatible with select Breville espresso machines with a tablet to get the job done (tablets not included) Exact Fit For -- Impresas blind espresso disc is precision cut to fit Breville models - Duo-Temp Pro, the Infuser, the Barista Pro, The Barista Touch, The Barista Express and more (BES810BSS, BES840XL, BES878BSS, BES880, BES870XL...). With a diameter of 54mm, it may work with other espresso machines as well Water Purging Hole -- Our cleaning disk compatible with select Breville machines has a tiny hole in the middle to purge water during use. Protect your espresso maker with the right accessories Easy To Use -- Whether you are a professional barista or at-home coffee enthusiast, backflushing with this espresso cleaning tool is simple. Place it in the portafilter and run the cycle a few times (please follow manufacturer instructions) Durable 2 Pack -- Our compatible Breville cleaning kit comes with 2 backflush discs. They are made from 100 silicone that will last for years. Using a backflush insert with espresso cleaning tablets will help extend the life of your machine