Review on Colorful Glass Dip Pens: Artistic Set with Fluorescent & Invisible Ink Kits – Perfect for Calligraphy, Writing, Decoration, Gift by Kim Sanchez

I have used other glass pens and this is a great glass pen with a very fine point. The pen is beautifully contoured and fits perfectly in the hand and while writing. The ink that comes with this set is great and usually comes in bright fluorescent colors. Invisible ink works well, but the pen tip needs to be absolutely clean or the invisible ink will pull out the last of the ink and not really be invisible on the page. The UV flashlight works well. Some invisible inks also fluoresce strongly when exposed to UV light. The flashlight's only improvement is a clearer marking of the direction in which to insert the batteries.