Invisible UV Pen

Invisible UV Pen we are professional marker manufacturer,having office in shenzhen.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,pack: bulk Costomizedpackage is acceptable,such as opp bag,blister card,colored box. 3,Logo: silk print,transfer film,sticker 4,Nib: bullet tip/chisel tip 5,dry easily and nothing left on the paper 6,the mark is visiable only under UV light,it's magic. 7,can mark on furniture,leather,phone,bike to prevent thief. Contact us for much more detailsif you are interested in our products. Different colors of barrel Pen tip & UV light