Comprehensive Set: Receive a meticulously assembled 6-piece felt washer kit tailored for espresso grinders, featuring washers with precise dimensions (outer diameter: 0.906inch (23mm), inner diameter: 0.709inch (18mm), thickness: 0.19inch (5mm) and a custom-fit wrench for effortless installation. Extensive Compatibility: Designed to seamlessly fit a range of for models, this replacement kit is perfect for BES870, BES878, BES880, BES980, and BCG820. your coffee grinder operates smoothly without the intrusion of coffee grounds. Premium Quality Material: Crafted from superior Felt, these felt washers offer exceptional and reliability, preventing coffee grounds from compromising the grinder's motor, thus enhancing the machine's performance. User-Friendly Installation: Equipped with a special wrench, this kit enables easy and quick washer replacement. Maintain and service your for grinder conveniently , eliminating the need for professional assistance. Ideal for Long-Term Use: Especially recommended for commercial environments or frequent use settings, these felt washers should be checked and replaced every 6-12 months. This pack provides ample to keep your grinder in top condition for extended periods. Color: As Shown Material: Felt Package Contents: 6 x washer 1 x wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.