Invisible Ink Marking Pen & LED UV Light, Sharpie Type Marker and Flashlight One BLUE invisible UV ink marker with separate arachnid brand LED blacklight Goes on completely invisible and glows bright blue in blacklght Quick drying alcohol based ink Fast and FREE shipping from the USA by DIRECTGLOW Beware of other products on this page from other sellers that are NOT the same as pictured and ship from CHINA very SLOW via first class