This dosing funnel is a practical piece of espresso accessory designed to improve your coffee brewing. It fits precisely on 51mm tri-prong Gevi portafilters as well as other 51mm 3-legged portafilters. By placing the funnel on top of your portafilter, you can easily grind coffee beans directly into the filter without spillage, ensuring a cleaner workspace and a more precise dosing of the coffee. This accessory is ideal for anyone looking to optimise their espresso preparation, and it can complement a setup that already includes quality equipment within espresso accessories from brands such as Rocket Espresso, provided your portafilter is a 51mm model.