About This ENHANCED ESPRESSO CONSISTENCY: The Weiss Distribution Technique (WDT) can improve your espresso channeling for the smoothest and most consistent brews. Great to use in combination with a portafilter dosing funnel and puck screen. PRECISION 10-NEEDLE DESIGN: Needles evenly distributed design. 10 Food-Grade Stainless Steel needles, 0.35mm diameter, the perfect size for breaking up coffee clumps. ERGONOMIC COMFORT: The WDT tool features an ergonomically-designed handle to give a good grip and steady control. ideal for home or professional baristas. STABLE, EASY-CLEAN STAND: The WDT tool’s widened hollow stand prevents coffee buildup, ensures stability, and cleans easily. HYGIENIC AND EASY TO CLEAN: The coffee stirrer is made of high quality plastic with a delicate frosted finish for an elegant and chic look. The steel needle is made of high quality stainless steel, which is corrosion and rust resistant and durable.