These tea mugs are for those of you that drink Olong tea the whole day and need a larger volume for the tea. Because the mugs have a lid, the temperature of the tea stays hot during a longer time. The mugs are made from the same Purper Clay sand (Zisha) as the small teapots. This way you can enjoy your tea in a mug with health stimulating properties. The mugs are in a box for safe transport.