How did we get started?When my children came into the world, as a father I started to learn how to give love to my children, so we put our hearts into making products that belong to our children and that they will love! Let them learn through play and explore the world. What is the quality of our merchandise?The products we present to our customers are of the best quality. Forging products with truth and building quality with love. Why do we like what we do?In developing products with care, we slowly fall in love with children, and they love us more ...... Product Description BinDamon hopes to give you the best life concept.  Children like to explore new secrets, and the invisible ink pen will bring them surprises.The party needs a good atmosphere, and its surprising performance will surprise you and your friends.Let the children have fun and enjoy things, so that they know more about gratitude.This pen provides exquisite gifts for your relatives, friends, students, birthdays, surprise parties, etc.! Is there a child in the world who doesn't like the idea of sending secret messages with invisible ink? When writing with this pen, the notes will disappear quickly. Only when the purple lamp on the pen gai'zi is used to illuminate the pen, the notes can be clearly seen. The color of the pen case is different, but the ink is the same color ON THE PAPER ON THE BODY WHERE CAN BE WRITTEN ON ANY PLANE ， T-SHIRTS,WALL AND SO ON... Magic Ink: The pen writes invisible ink that becomes visible when the cap is turned on and the light is on. Safe and Odorless: The ink is harmless and odorless, making it a great toy for kids. Fun Party Favors: Write messages on gifts for birthdays, Halloween, Christmas, and more with the pen and light.Professional Service: We provide fast and friendly customer service to help you with any questions or concerns.