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.