Professional Tool: This espresso dosing funnel is designed for 58mm portafilters and is easy to operate. Simply place it on top of the portafilter to precisely load ground coffee, perfect for making -quality espresso without mess or waste. Clean and Tidy Workspace: This coffee funnel directs ground coffee directly into the portafilter basket, greatly reducing spillage and waste, keeping your workspace tidy. It's a must-have tool for keeping your coffee bar area clean. Enhanced WDT Compatibility: This dosing ring is perfectly compatible with WDT tools and helps break up clumps of ground coffee. Its design prevents ground coffee from spilling during preparation, ensuring even extraction. Magnetic Stability: This espresso funnel is embedded with eight strong magnets for a secure hold, firmly gripping the bottomless portafilter during use, providing stability and confidence when handling finely ground coffee. and Easy to Maintain: Made of high-quality aluminum alloy, this dosing funnel is not only but also very easy to clean. Simply rinse it under water after use to maintain its condition and hygiene.