Secret pen with black light

This is a secret pen.

The letters you write will illuminate under black light.

Three test button batteries (LR1130) are included.

Enjoy sending and receiving secret messages.

*The ink is transparent, so writing is invisible.
*The ink may not glow well depending on the material you are writing on.

*Color cannot be specified.

●Approx. Size: Diameter 16mm x Total Length 134mm
●Suitable for ages 6 and up
●Uses: Black light pen, transparent pen, writing implement, marker, stationery
●Quantity: 1 pen