The CasaWare Tilt & Drip Tea Infuser Mug helps you make that perfect cup of tea. The mug is made of ceramic and has silicone on the base of the mug and silicone on the top edge of the tea infuser. The silicone insulates heat plus it makes is easier to grip and remove the tea infuser. The silicone also makes sure the infuser fits nicely on the lid at all times. The Tea Infuser also has our “Tilt and Drip” technology. Just tilt the infuser and rest the v-shaped clip on the mug. The tea drains in minutes without holding the infuser. The extra-fine stainless steel infuser provides excellent water flow and plenty of room for tea leaves to expand and brew. The multi-functional lid serves as a small dish for loose tea/tea bags, and doubles as an infuser holder when turned the other side. The base of the mug has a built in silicone coaster. This convenient and smooth non-skid base makes this mug scratch free and furniture friendly. The mugs have a comfort grip handle. The silicone base and handle give this mug a new a fresh look. We hope you enjoy your tea with our Tilt & Drip Tea Infuser Mugs.