Description

This high-tech product which made of importing new material and advanced skill.There's no different in appearance but the writing will be disappear automatically gradually about in **3 hours.Widly used
in file security,magic Show and other security field.

Features:
1.New and high quality
2.looks just like normal pen, but a great tool for magic trick
3.The word that wrote down by this pen will disappear thoroughly within hours
4.Make fun to your friend with this pen and good gift for your friends