Color as shown Size: 10*10cm Weight: 10g [Long Nib Marker] The deep hole marker is designed with a 30mm long nib, reaching hard-to-reach areas where other carpenter markers cannot reach, suitable for marking through holes or in other narrow areas. [Affordable Set] The package includes 10 carpenter markers, refill colors: red, blue, black, white, the nib line width is 1mm and each pen can write about 200m, which can meet your long-term marking needs. The four colors are easy to distinguish, and especially the white is ideal for painting on dark surfaces. [High-Quality Materials] These deep reach pens are made of PP shell and carbon steel nib, sturdy and durable; they contain permanent ink, waterproof and smudge-proof, quick-drying, xylene-free and low-odor. [Markings on Various Surfaces] The drill marker can draw on metal, plastic, stone, glass, wood, paper, etc. [Warm Tips] Please put on the pen cap when not in use, so that it can be used stably for a longer time.