Never used, in excellent condition just out of the box. Comes from a smoke free and pet free home. Set of 4, double wall, medium, 0.35 l, 12 oz Main Features & Benefits: Innovative double wall construction that keeps hot drinks hot and cold drinks cold. Also perfect for serving soup or cold desserts. Made of mouth-blown, heat-resistant borosilicate glass. Hydrophobic silicone vent that equalises the air pressure between the two layers of glass. Dishwasher, microwave and oven safe (up to 356ºF/180ºC). Use & Care: Wash in warm, soapy water before first use and dry thoroughly. For all subsequent uses, wash and dry by hand or pop in the dishwasher. PAVINA double wall glasses are safe to use in the freezer, oven and microwave.