Minimum Waste: The sleek design of our funnel ensures minimal wastage in dosage allowing grinding to fit seamlessly into your portafilter holder : metal, safe and Simple and lightweight design and high temperature resistance White Distribution Technology ( WDT): The product uses the WDT methods for distributing the coffee grinder and ensures that your grinders are into tiny grains The technology also prevents unnecessary spills Stable Designed: It can be placed stably on your coffee machine without worrying about it falling off or moving Quick to use and replace Fits Perfectly on 58mm Portafilters: Suitable for most 58mm coffee machine filter baskets