Dougong (Chinese: 斗拱; pinyin: dǒugǒng; lit. 'cap [and] block') is a structural element of interlocking wooden brackets, important in traditional Chinese architecture for both its structural capacities and cultural implications.

After decompression, there are 21 stl files inside. After printing, they can be assembled into the bracket in the picture. There is also an assembly procedure in the picture.