DirectGlow Invisible UV Ink Marker Pen with Ultraviolet LED Keychain Blacklight

This small combo set includes an invisible blue UV marker with a high quality metal arachnid LED blacklight. The blacklight has a short chain with a key ring for easy hanging or attachment to a key ring. It has changeable batteries and is activated with a simple push button. Mark your valuables for identification or have fun writing secret messages for others to find. Everything you need in one low cost package!