About this item WRITE YOUR SECRET MESSAGE This magical invisible disappearing ink pen will write your secret message. Once your secret message has been written with this invisible ink pen, wait a few seconds to shine the light from the cap of the pen and reveal the secret of the secret message. INVISIBLE INK PEN Harmless and tasteless ink, healthy toy for your kids! Smooth and colorful disappearing inks on T-shirts, paper, skin and any surface! Permanent but washable! With 12pens 6 Flexible Bendy Pencils, Make surprises, reveal a top sec and brings you an amazing variety of fun activities such as stocking stuffer, treasure hunt,escape room,or classroom activity. KIDS PARTY FAVORS Kids will love these spy pens. Kids love using this kind of pen to keep their secret and play detective spy games. Invisible pen brings you an amazing variety of fun activities. From Surprise birthday parties, to revealing a top secret message to their parents or grandparents.as Birthday Gifts,Halloween Gifts,Easter Day,Valentines Day Gift,Christmas Presents for kids and friends. INK PEN FEATURES12 pcs ink pens ,The upgraded pens are now thicker for longer lasting fun!! Batteries included and installed. The barrel of the pens will come in a variety of colors to keep the activity exciting. The Color of the light is Blue and it will display the words written in clear ink.They each had a pull tab to save battery life. Please BE CAREFUL with small items:Children above 3 years. BUY WITH CONFIDENCE We consider our customers as our top priority.Please contact us if there is any question or problem. We aim to please. PACKAGE INCLUDES 12 Pcs Spy Pens + 6 Pcs Flexible Pencils. USE ATTENTION Due of there is ink inside the pen, please close the cap when you are not using it, otherwise it may dry out the ink and make it impossible to write. If you have any questions during use, please contact us in time and we will give you the best Good after-sales service.