● Wild Range Application - Zoo tagnrho rau kev siv ntau yam nrog rau kev puas tsuaj ntawm cov log tsheb thiab kev hnav cov cim, cim qhov chaw ntawm cov log tsheb thaum lub caij hloov pauv, thiab ntau dua.
● Tsis muaj txhuas - Crayons tsis muaj txhuas lossis zinc compounds.
● Sau Rau Ntau Qhov Chaw - Zoo heev rau siv rau ntawm cov ntub dej, qhuav, du, lossis ntxhib ntawm cov khoom siv xws li roj hmab, hlau, iav, thiab txawm tias ntoo.
● Waterproof - Cov cim ntev ntev yog ib nrab mus tas li thiab yuav tsis ploj ntawm huab cua lossis cov ntsiab lus tab sis yooj yim rubbed.