The Low Temperature Solid Marker Mini sold in a box of 2 for extra savings is a permanent, solidified paint marker crafted for use in cold environments. It is perfect for challenging applications, capable of marking on nearly any surface, including those that are dry, wet, dusty, rusty, or rough. Its unique solid paint composition allows for marking in any direction, including sideways and upside down, without dripping. A simple push-up mechanism allows for easy activation. The tip measures 10mm but can also be easily trimmed down with a blade for more precise marking.