marker

Double tip permanent marker with oil-based ink,sun-proof and water-proof,non-toxic,never fade 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-toxic 3.Never fade fibre tip,write smoothly, 4.Good for make marks on many surface,can not be erasable, 5.Suitable for office,school,hotel etc.