Palace Museum ruler

Style: Taihe Gate, Corner Tower, Shenwu Gate, Taihe Hall.
Unit: 1 set (4 types).
Material: Brass.
Specification: 
15.6x3.6cm (ruler).
11.5x6.7cm, 8x8cm (two triangular rulers).
9.8x5.2cm (protractor).
Packaging box approximately 20x20x2cm.
Packaging: Color Box.
The above data is manually measured with slight errors.