Uni Brew-in-Mug with an extra-fine hole stainless steel infuser and a lid is designed for simple and clean way of brewing fresh cup of tea,Large capacity stainless steel infuser that features condensed extra fine holes allows tea to circulate efficiently,All parts are dishwasher safe Mug and Lid is microwavable,Mug: Lead-free high-fired ceramic Lid material: BPA-free polypropylene Infuser material: Stainless Steel/BPA-free Polypropylene,16 ounce capacity Measures 5.25 Inch long, 4.00 Inch wide and 4.65 Inch height