Dab tsi yog Sketch Marker

Mark Pen (Lus Askiv: Marker Pen lossis Marker), kuj yog tus cwj mem. Nws yog xim pleev xim rau kev sau ntawv lossis pleev xim. Nws muaj tus cwj mem thiab feem ntau muaj tus cwj mem npog. Feem ntau, nws muaj lub taub hau me me thiab ob lub taub hau, lub taub hau me me, thiab lub taub hau loj.

Cov xim ntawm tus cwj mem yog volatile thiab siv rau kev kos duab nrawm ib zaug. Nws yog feem ntau siv rau hauv cov khoom tsim, cov lus tshaj tawm, kev kos duab kos duab lossis lwm yam kev tsim kos duab. Koj tuaj yeem kos ib txoj kab me me, tuab dua. Lub thawv taub hau cwj mem yog hom Mark cwj mem. Kuj tseem muaj dej thiab oily number case muab faib ua number case. Dej-based number case zoo ib yam li cov cwj mem xim. Nws yog cov ntsiab lus uas tsis muaj roj essence. Roj number case yog qhov zoo siab dua thiab yooj yim rau volatilizes vim nws muaj cov khoom xyaw oily. Yog tias cov khoom ua si pleev xim rau, koj tuaj yeem siv tus cwj mem los ua kom zoo nkauj.