Wide Compatibility: Works with most 51mm espresso machines, providing smooth integration for professional coffee brewing in various settings Perfect for Coffee Enthusiasts and Professionals: Ideal for coffee lovers and baristas aiming for coffee, enabling the discovery of flavors and creative mixes in any environment Durability and: Constructed from premium stainless steel, it surpasses with better longevity, stability, and at high temperatures, ensuring not harmful substance transfer Flexible Capacity Choices: Offered in single-cup ( 7-9g coffee) and double-cup ( 14-18g coffee) setups, addressing individual or shared brewing requirements Advanced Two-Layer Pressure Systems: Features a unique two-layer pressure structure to improve brewing pressure, ensuring consistent water flows through coffee grounds for a richer and more intense coffee