OEV1111 Features: * 6 to 8 times the writing life of most other capillary markers of comparable size * Drying Time: 45 seconds to 1 minute * Interchangeable and replaceable tips available * Marks will not smudge or rub off * Permanent ink writes on smooth surfaces such as metal, aluminum, plastic, glass, rubber and more * Threaded end that can be screwed into a jig or apparatus for a continuous identification application