Mug "Beresta". Mug made from Beresta - Russian Birch bark. Usually it's making from North Birch. This products are eco made, they are very durable and in the same time very light. Some Beresta products can be stored more than 1000 years! This Mug made from Beresta. It's created for cold beer, kvas or some other cold drinks. Usually used by Russians, when they are going to the bathhouse. Made from Russian Wood. Original Beresta products! Size - 6x6x7,5 cm