Invisible UV Pen 1,Conform ASTMD-4236,EN71,6P,Lead 2 ... pens manufacturer,owning excellent R&D group and strict QC team."Credit and Quality" is our idea.All of ... products can conform international tests standards,EU and US standards.Material PP Pen tip bullet fiber tip Ink colors Invisible ... Paint on clothes,furniture,leature and so on.Ink visible only under uv/black light. Other Similar Product pictures ...