About this item 【Auto Calibrated Espresso Tamper】- Our espresso tamper with interacting constant force springs and a stopper,It automatically adapts to different depths of ground coffee, applying more than 30 pounds of constant pressure for optimal extraction, and ensuring that each compaction reaches the ideal density,and results in a more balanced and delicious espresso taste 【Professional Grade Precision 】-Our 51mm espresso tamper base diameter is 51mm, it features a built-in spring mechanism, requiring no additional adjustments whether you are a coffee lover or a professional barista, an be easily controlled 【Durable Material】- Made from wooden materials and stainless steel materials, our espresso tamper 51mm is built to last, resisting wear and tear bringing you a good user experience and prolonged enjoyment for all coffee enthusiasts 【Ergonomic Design 】- Our51mm espresso tamper walnut wood handle is ergonomically designed to prevent fatigue even after prolonged use, is committed to providing high-quality, our professional coffee equipment for coffee lovers and baristas 【After-sales Service 】- 51mm coffee tamper is compatible with most espresso machine tampers, both domestic and commercial, and to meet the needs of different occasions, If you have any concerns or dissatisfaction, please feel free to contact us via Amazon