About This PRECISION-ENGINEERED: The espresso dosing funnel is designed to fit standard 58mm espresso baskets, ensuring a perfect seal and uniform coffee distribution for optimal extraction. If your workflow involves coffee grinds and a portafilter, chances are the Ring can help. Magnetized, mirror-polished interior, and fully stainless steel. DURABLE MATERIALS: Made from 304 stainless steel for durability and resistance against wear in all environments; brushed exterior and mirror finish interior to better spot errant grinds. EASY ASSEMBLY: Equipped with 8 Neodymium magnets for dependable adhesion on your basket, upside down or during tapping, maintaining consistency and dismantling with ease. SUITED FOR YOU: This espresso dosing tool is versatile, designed for both high- and low-volume settings. Perfect for direct grinding or use with dosing cups, it effectively contains WDT mess and accommodates side-tapping with ease offering flexibility to suit your workflow. MAINTENANCE-FREE: Featuring a brushed exterior and a mirror-polished interior, this tool is built to last with no coatings or paint that could chip over time.