Magic Ball Pen which looks just like normal pen, is a great tool for magic trick. The letters which wrote down by this pen will disappear within 2 hours. Easily play trick to your friend with this pen.
Just looks like normal classic ball pen. The ink disappears within 2 hours or longer time,which is depend on what you write in,the materials is very important for time to dissappear.
Sensitive notes can be taken today and can be self assured that they will disappear soon.