Qhov zoo ntawm whiteboard markers dag tsis tau tsuas yog nyob rau hauv lawv yooj yim thiab practicality tab sis kuj nyob rau hauv lawv erasability. Nrog rau kev siv cov ntaub ntawv tshwj xeeb dawb los yog cov ntaub ntub dej huv, cov ntawv sau thiab cov qauv ntawm cov ntawv dawb tuaj yeem muab tshem tawm kom tsis muaj zog, tso cai rau cov ntawv dawb rov qab siv dua, txuag cov ntaub ntawv thiab ua tus phooj ywg zoo dua.
