[Long Tip Marker] Deep hole carpenter pen designed with 30mm tip length, reaching hard to reach areas where other carpenter markers don't go, suitable for marking through holes or in other narrow areas.[Affordable set] The package contains 6 markers, the refill colors: red, blue, the width of the line of the nib is 1mm, and each pen can write about 200m, which can meet your long-term marking needs.[High-quality materials] These pens are made of PP shell and a carbon steel tip, sturdy and wear-resistant; They contain permanent, waterproof and smudge-proof, quick-drying, xylene-free and low-odor ink.[Marks on Various Surfaces] The drill marker can draw on metal, plastic, stone, glass, wood, paper, etc.[Warm Tips] Please cover the pen cap when not in use, so that it can be used stably for a longer time. Note: The data are all manual measurements, please allow 1 - 3cm error, due to the difference in light and display, there will be a certain difference in color, depending on the physical object received Delivery quantity: (according to the main picture)