A. Product name: Long Head Deep Hole Marker Pens B. Product size about: 14cm/5.5in C. Pen tip: 20mm/0.7in D. Product color: As shown in the figure E. Product material: PP F. Product features: 1. Double-head design: It adopts a double-head design, one side is long and the other side is short. The tip of the long-head pen is 20mm. It has a slender tip that can be inserted between narrow gaps or write in small spaces, such as nail and screw holes in frames and wood. 2. Universal marker: The long-head deep hole marker is suitable for furniture decoration, bookshelves, and lamp drilling locations. It also marks deep holes for metal processing, automotive manufacturing and other production industries. 3. Quick-drying and waterproof: The long-head deep hole marker is quick-drying, stain-proof and waterproof. It can mark most dry and dust-free surfaces such as aluminum, metal, concrete, glass, wood, plastic, etc. It is easy to use. 4. Sturdy and comfortable: Made of PP material, it is sturdy and not easy to age. The overall size is stable, reliable and comfortable to hold. There is a 60mm ruler on the side to help you measure. 5. Practical marking tool: The long-head deep hole marker is ideal for handmade and DIY projects. Its well-designed marker can make eye-catching marks and reach hard-to-reach places. Special marker for carpenters, DIY enthusiasts and more. G. Precautions: 1. As we all know, different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can contact us at any time. We will give you some suggestions, but for your reference only. H. Shipment includes: 6 pc Long Head Deep Hole Marker Pens