Shen Collection, Upper Volume Radical: Grass (cǎo) Guo Kangxi stroke count: 17 Page 1055, Entry 27 Pronounced kui (falling tone). Ceremonial Rites (Yili), Commentary on the Cap Ceremony for Scholars: Kui is a black cloth cap without a hair pin. In the states of Teng and Xue, the name for a hair-fastening headpiece (guo) is kui. History of the Later Han (Hou Hanshu), Treatise on Carriages and Attire: Clipping the yak-hair hair-fastening headpiece (guo), inserting hairpins and ear ornaments. Commentary: The hairpin is made of tortoiseshell as a bodkin, one foot in length, with a horizontal pin on the left and right sides to secure the hair-fastening headpiece (guo) knot.