It's the perfect blend of simplicity and elegance in an18 oz Single Wall Glass Tea Infuser.  Made from borosilicate glass.  The mug includes a Tilt & Drip stainless steel comfort grip tea infuser, with a silicone rim on the top of the infuser which makes it easier to grip and cool to the touch. The ultra fine mesh tea infuser provides excellent water flow and plenty of room for the tea leaves to expand and brew, while the glass allows you to see the color of your tea.  The glass lid doubles as an infuser holder, and the whole system is easy to clean. It is top rack dishwasher safe, and the glass mug is microwave safe and BPA free.  Functionally and aesthetically this is a great tea infuser mug.  Cheers!