You receive 12 pieces of deep hole markers in 4 colors: black, blue, green, and red, 3 of each color, sufficient quantity and color to meet your use and replacement needs. This carpenter pen adopts quality material, which is strong and reliable, has a long service life; Its pen body is long, the nib is thin and round, easy to handle for marking needs. The carpenter's pencil features a 20mm long tip design. The marking depth is longer, perfect for marking deep holes or other narrow areas, improving work efficiency. The handwriting dries quickly after writing, and you don't have to worry about smudging after marking. This long nib marker is water-, writes clearly, and can be applied to surfaces. The deep hole marker pen can be used to leave clear marks on a variety of surfaces such as wood, glass, metal, tiles, and more. Whether it's a complex structure or a detailed part, the marking pen facilitates marking, making it an ideal tool for building renovations, hardware manufacturing, mechanical engineering, home decoration, and routine maintenance. Color: As Shown Material: plastic Package Contents: 12pcs x construction pen Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.