1、ALUMINUM ALLOY MATERIAL: Dosing funnel is made of premium aluminum alloy material, sturdy and reliable, not easy to rust. Let you have a cleaner and more efficient coffee making experience. 2、EASY TO INSTALL: This dosing funnel features a comfortable lightweight design. Fits perfectly with the 54mm/2.1in portafilter, with rotating lock design, which is both secure and easy to attach and detach. 3、AVOID MESS AND WASTE: The anti flying powder ring design effectively prevents coffee powder from splashing. This reduces waste and helps maintain a clean work area. 4、CONVENIENT: This dosing ring with rotating function facilitates even distribution of powder and enhances the taste of coffee. Prevents coffee grounds from sticking to the shower screen of the coffee maker. 5、PROFESSIONAL: Coffee dosing funnel is easy to operate, making coffee making more convenient. Precise size design ensures perfect fit installation and won't waste your coffee. Item Type: Dosing Funnel Material: Aluminium Alloy Ring Diameter: Approx. 6.2cm / 2.4in Gross Weight: Approx. 56g / 2.0oz 1 x Dosing Funnel