Insulated mug: a pack of four double-wall pavina mugs, 12 ounces each; perfect as a coffee mug, Espresso mug, or a multitude of other hot and cold beverages

Heat resistant: Bodum mug is made of mouth-blown, lab-quality borosilicate-glass construction for a durable and heat resistant glass

2-Layer design: insulated Coffee mug has a sleek 2-layer design that creates a dramatic optical illusion and prevents condensation

Microwave safe: quickly reheat your Coffee in the microwave and toss in the dishwasher when you need a clean; microwavable and dishwasher safe mug. The individual dimension of 1 glass is 4.56 x 3.46 x 3.46 inches

Used in great condition.

All 4 have the number 3 on the bottom. 2 are marked PCT Patent pending design registered by Pi-Designs AG, Switzerland