Pay in 4 interest-free payments of $3.75 Learn more
Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
Cotton Nylon
100% cotton canvas
5" x 10" x 1
perfect for any host
Invisible Ink Ghostwriters Putty hair Cotton NylonOften used to encode top secret information, invisible ink has a long and interesting history dating back to 4th century BC. There are all kinds of ways to make and read invisible ink (like heat and lemon juice), but our Invisible Ink Thinking Putty uses ultraviolet light to mimic blue ink on a sheet of green paper. Write with the Glow Charger and watch with wonder as your words evaporate into thin air.
