... writing, mark, diary or others, with CE/ROHS/EN71. Disappearing ink pen.Could produce as your customized artwork and design.Suitable ... /EN71 certificates.Features:Secret pen for secret writing and markInsivible ink will be showed under UV blacklightLight also for money detectorAlso ... , 52.5*41*38cmG.W./N.W., 12/11kgs Invisible Ink Pen, Secret Message Writter Pen