Unlike other similar products on the market, our hand press coffee grinder hopper has an ability to maximally blow out the residual coffee grounds and powder, so no more stale grounds stuck in the grind chamber. By the advantages of detachable, compact and lightweight, this hand press coffee grinder hopper is easy to store, and no need to worry about taking up too much valuable space. It is made of high-quality aluminum alloy and silicone material. The length of this product is 13.3cm and width is 8.3cm. This product is perfectly suitable for ECM S-Manuale64, for ECM S-Automatik64, for ECM S-Automatik64anthracite, for ECM V-Titan64. Item Name: Coffee Grinder Hopper Material: Alloy, Silicone Features: Reusable, Food Grade, Clean Easily Size Details: Size: 13.3cm x 8.3cm/5.24" x 3.27" (Approx.) Interface Diameter: 4.5cm/1.77" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Coffee Grinder Hopper(Others Not Included)