簽字筆

felt-tip pen / roller ball pen / gel ink pen

to sign one's name / visa / variant of 籤|签[qian1]

to sign (one's name) / signature

letter / symbol / character / word / CL:個|个[ge4] / courtesy or style name traditionally given to males aged 20 in dynastic China

pen / pencil / writing brush / to write or compose / the strokes of Chinese characters / classifier for sums of money, deals / CL:支[zhi1],枝[zhi1]