This 304 stainless steel coffee dosing cup features a 58mm design that fits 58 34mm tampers Perfectly compatible with most espresso machines and tampers, it solves compatibility issues for both home baristas and professionals engineered with exact manufacturing standards to ensures even coffee puck compression every time Enhances extractions for baristas pursuing perfect espresso shots Built with sturdy construction to withstand frequent use, reducing replacement frequency Features a smooth surfaces that prevents coffee grounds from sticking The easy to clean design saves time during busy mornings, making it ideal for modern urbans lifestyles food grade 304 stainless steel for coffee lovers The rust resistant materials ensures long term durability, maintaining hygiene for daily coffee brewing