The 15 oz. Tea Party Mug from ASOBU is a great way to steep your own tea. Put your favorite tea into the stainless steel infuser, fill the tea mug with hot water and insert the infuser! When the tea is your color, put the infuser into the specially designed top to hold it while you enjoy your beverage. The top can also be used as a lid to keep the drink hot or can additionally be used as a coaster. Like new. It was a gift that I never used. I am a coffee girl. Lol Heat-resistant Deep glass container with stainless steel infuser Makes fresh tea Lid functions as saucer or coaster 100% BPA-free Top-rack dishwasher safe 6.8” x 3.5”