9 LED Torch UV Light Ultra Violet Blacklight LEDS Pocket Flashlight Mini Torch

MINI PORTABLE FLASHLIGHT TORCH LIGHTALUMINUM INVISIBLE BLACK LIGHT DETECTION INK MARKER 

Power Source: Battery AAA (not included)
Outdoor Activity
Color: Black, Blue, Silver
Operating voltage: 4.5V
Number of LED: 9

It is lightweight and incorporates a handy strap, perfect for your bag or to fasten securely whilst walking or running.