The Invisible Writer 2-in-1 Pen is 2 fantastic pens in one! Write in both invisible ink that is only detectible with the aid of a black light (which is included on the cap of the pen) and in regular black ink. Make cryptic messages that are great for passing notes in class or keeping secrets from others! A sure hit with any avid gossiper! Even comes with 3 button cell batteries so you don’t have to worry about having to make a trip to the store to buy batteries for the black light cap! Also great to be used as a currency checker, glow charger, and hidden highlighter, and more!

Box Size: 8.50in (21.59cm) x 2.50in (6.35cm) x 1.00in (2.54cm)

Recommended for ages 6 and older.

Weight: 0 lb 8 oz ( 0.23 kg )