CD/DVD marker with alcohol-based ink,sun-roof and water-roof,non-toxic,special tip,write soomthly on the CD/DVD without destroy the CD/DVD,can be erasable by the eraser pen,suitable for office,school,home etc 1.Simple design with good image,fibre tip; 2.CDmarker with oil-based ink,sun-proof and water-proof. 3.Non-toxic,good for mark on many surfaces; 4.Suitable for office,school,hotel etc.