Invisiable UV marker pen

Invisiable UV marker pen we are professional marker manufacturer,having office in shenzhen which has convenient transprot and port to abroad.we have our own R&D group to ensure our quality and development. 1,this pen is made of totally new PP material and imported ink. 2,the marker pen looks cute 3,dry easily and nothing left on the paper 4,the mark is visiable only under UV light,it's magic. Contact us for much more detailsif you are interested in our products.