Sufficient Quantity: You can get 60 pieces of 2.8 mm solid silver pencil refills in 10 boxes, with 6 pieces per box. The ample quantity allows you to replace your carpenter marking pencils in a timely manner, enabling smooth and clear lines to avoid repeated drawing, improving work efficiency. You can also share them with colleagues. Clear and Obvious Color: Our deep hole mechanical construction pencil refills use silver pigment, making markings more visible on darker surfaces. Since the markings are less erasable, you can confidently mark a variety of surfaces. Work Without Worries: These mechanical pencil refills are made of quality metal material, strong and sturdy, not easily broken or faded during woodworking, drawing, or marking tasks. You can complete your work smoothly without concern for interruptions. Apply to Various Surfaces: These pencil refills are suitable for use on multiple surfaces thanks to their durable material and permanent marking ability, including oily, rough, smooth, wet, dry, icy, and rusted surfaces. Ideal for construction, woodworking, architectural drawing, and other applications, meeting most daily needs. Versatile Applications: These colored pencil refills offer wide application possibilities, suitable for use with scribe tools, carpenter pencils, engraving tools, glass cutters, and more. Use your creativity to explore various functional combinations. Color: Silver Material: Graphite Size: 2.8 mm Package Contents: 60 x Pencil Refills (6 pieces per box) Only the above package content is included; other items are not part of the package. Note: Lighting and display differences may cause slight variations between the color in the image and the actual item. Measurement may vary by +/- 1-3 cm.