The Bailey Mug & Infuser features a 12 Oz capacity, made of bamboo, ceramic, and stainless steel, tea infuser, and a wooden lid to hold in the heat longer. Some people are super organized and time everything in their lives perfectly. Others (ahem) brew cups of tea and forget to drink them. The Bailey Mug & Infuser protects the distractible ones among us from cold tea by providing a wooden lid to keep it hot. It also doubles as a coaster for the times we forget to grab one!