... and EN-71 Packing:12pcs/color box,80boxes/ctn Double tip permanent marker with oil-based ink,sun-proof and water-proof,non ... fibre tip,write soomthly,good make marks on many surfaces,can not be erasable,suitable for office,school,hotel etc 1.Permanent marker ... with oil-based ink,2.Sun-proof and water-proof, non-toxic3.Never fade fibre tip,write smoothly4 ...