Fangrui Product Details Bundle Includes: You Get 8 Multipurpose Deep Hole Pens, 3 Different Colors, Red, Blue And Black, 3 Black And Red, 2 Blue; Enough Quantity For Your Use And , You Can Share With Colleagues And Friends. Right Size: With An Overall Length Of 137mm/5.4inch, This Versatile Deep Hole Marker Has A 20mm/0.8inch Long Tip For Easy Marking In Deep Holes Or Hard To Reach Areas, Easy To Use And Easy To Carry. Premium Material: This Woodworking Pen Is Made Of High-quality Material, Which Is Strong And Reliable, And Has A Long Service Life; The Nib Is Thin And Round, Which Is Convenient To Operate. Practical: The Long Nib Design Of Woodworking Pens Is Different From Other Markers; It Can Easily Mark Deep Holes Or Areas That Are Difficult To Reach With Ordinary Markers, Making Your Woodworking Easier. Versatile Uses: This Long Nib Deep Hole Pen Is Suitable For Surfaces Such As Wood, Metal, Glass And Plastic, Suitable For Home Decoration, Hardware Processing, Automotive Manufacturing, Industrial Processing, Etc