Fangrui Product Details Great For Single Coffee Maker Rich, Deep Flavorful Coffee --- 3-hole Coffee Dripper Is Completely Ceramic, It T Negatively Impact The Coffee Flavor Like Other Plastic Or Metal Filters. Also With The Three Holes At The Flat Bottom, Its Dripping Is Slower Than The Plastic, 1-hole Drippers. Which Maximizes The Flavors With Greater Flexibility And Room For Brewing. The Dripping Time Allows More Flavor To Be Soaked Up By The Coffee Grinds To Make A Cup Of Much Better, Richer Coffee. Super Easy To Use And Clean --- The Simple Design Solid Single Cup Coffee Drip Funnel Makes Clean Up A Snap Without Pain. Dump The Filter And Put It In The Dishwasher, Though Hand Wash Also A Piece Of Cake. Theres Less Waste And Easy, Quick Making And Cleaning Up When Using This To Make Coffee. Easiest Way For Great Tasting Coffee Is Boiling Water And Pouring Over. No Big Messy Coffee Maker To Clean With Vinegar Or That Seems To Have Buildup Residue On It That Spoils Taste. Microwave And Dishwasher Safe --portable A