Skip to content

4in Invisible Ink Thinking Putty

$16.99
- +

Notify me when back in stock

Description

Often 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.

Thinking Putty® helps build hand and finger strength through a fabulous tactile play experience with unique, unexpected properties and provides relaxing, yet stimulating interaction for anyone with sensory integration issues.

Crazy Aaron's putty is non-toxic, won't dry out, and won't leave a sticky or slippery residue on your fingers, so it's great for stretching, molding, bouncing, tearing, popping and playing by kids and adults alike.

  • Color: Green that glows dark green
  • Features: Glow-in-the-dark, Stretchable, Sculptable, Soft Texture
  • Ages: 3+
  • ⚠️ Warning: Choking Hazard. Contains Small Parts
  • ⚠️  Warning: UV emitted from this product. Avoid direct eye or skin contact with light. DO NOT aim light at people or pets.
  • Proudly made in the USA
  • Manufactured with the help of exceptional individuals with disabilities

Shipping & Returns

visit us

Snapdoodle Toys

The fun doesn’t stop there, because Snapdoodle Toys and Games isn’t just online! We have seven locations in the Greater Seattle Area. So come in and play with us!

View locations & hours