Ultra violet marker with a non-toxic, metal-detectable additive. These UV markers feature a bullet-style nib that has a medium thickness. The UV ink is alcohol-based and invisible to the naked eye but is illuminated by ultraviolet light. Potential uses include the security marking machinery and other assets. The marker body and cap are molded from high-density polyethylene, containing a non-toxic metal detectable additive. These markers are sold in a pack of 10.