For storing jewelry and documents. 1980s collection, mint. Height: 44 cm / 17.3 inches Diameter: 13.5 cm / 5.3 inches Weight: 1.6 kg / 3.5 lb After packing 3.5 kg / 7.7 lb Batak is a collective term used to identify a number of ethnic groups found in the highlands of North Sumatra Indonesia. Their heartland lies to the west of Medan. In fact the Batak include several groups with distinct, albeit related, languages and customs (adat). The Toba Batak believe that they originate from one ancestor Si Raja Batak, everyone else descended from him.