PACKING - This product includes 1 silicone bellow single dose hopper with a lid, specifically designed to fit the Eureka Mignon coffee grinder. SIZE - The hopper bellow features a diameter of 7.9 cm (3.1 inches) at the opening, a height of 4.2 inches, and a base diameter of 4.2 cm (1.65 inches). COMPATIBILITY - This silicone bellow is compatible with several coffee grinder models, including the Eureka Mignon, Nuova Simonelli DUO, and Rocket Espresso Faustino grinders. USAGE INSTRUCTIONS - For optimal cleaning of coffee grounds, turn on your coffee grinder and set the grind setting to the coarsest option. Then, press the silicone bellow up and down to effectively blow out residual coffee grounds. The durable silicone bellow, paired with an aluminum lid, is designed for thousands of uses, ensuring long-lasting performance. APPLICATION - This bellow hopper is perfect for cleaning and collecting excess coffee grounds. Simply plug it into your coffee grinder and press the bellow to eliminate stale grounds stuck in the grind chamber. Easily switch between different coffee beans without the hassle of flushing out previous grounds.