This is a single glass mug or cup with a stainless steel infuser that is brand new in the box.
It is made of borosilicate glass, a non slip silicone gasket, and an extra fine mesh stainless steel infuser and glass lid.
The handle is heat resistant. The capacity is 15 oz or 450 ml. It has a glass lid.
The glass mug and lid are microwaveable. The infuser is not microwavable.