Description This set of mugs is a great addition to your glassware. Made of tempered glass, this set of six mugs features a durable construction that is impact and chip resistant. The glass is manufactured to withstand sudden temperature extremes, so it is ideal for hot or cold drinks. It's perfect for Espresso, as the curved design of the mug makes it a versatile piece of glassware and very fashionable at the same time. Features: Tempered glass. Shock and chip resistant. Suitable for hot or cold liquids. Microwave, freezer and dishwasher safe.