Designed and created with the highest quality material to ensure the longest lifespan and highest quality results while brewing with the AeroPress Coffee and Espresso Maker. This device allows more oils to bypass the filter creating a fuller bodied cup of coffee or espresso when using the Aero How to Use: -Wash thoroughly before first use using soap and warm water. -Ensure Stainless Steel Filter fits securely in your AeroPress Device. *It should be a very snug fit* -After brewing， rinse your Filter under warm running water. -Repeat. Material: Stainless Steel Diameter: 61.5mm Package Content: > 1 x coffee filter