This is our favorite way to steep a cup of tea. Designed to optimize the flavor of your favorite loose leaf tea, it is etched with small micro holes that keeps fine tea leaf particles contained. The stainless steel basket allows leaves to expand and it fits nicely in most mugs. It has a dual-function lid which keeps the volatile oils in and retains heat. It also serves as a drip tray. Non-slip design and silicone touchpoints remain cool to the touch. Dishwasher safe!