Fortune BL-A7 Portable Black Light, 6.5\" Length x 1.6\" Width
Price 6.99 USD
Portable black light can be used to detect invisible ink, find pet stains, or perform similar tasks * Contains 4-watt bulb; emits long-wave ultraviolet light at 365 nanometers * Attached strap can be looped around hand or wrist for carrying * Measures 6.5" long and 1.6" wide * Requires 4AA batteries (sold separately)