1. 【Versatile Multi-Purpose Utility】These professional-grade white markers are essential tools for home renovation, hardware processing, woodworking, and plastic manufacturing projects. Whether you are marking dark surfaces or performing precise industrial layouts, these pens offer reliable visibility and performance across a wide range of professional and DIY applications. 2. 【Premium Material and Specifications】Crafted from robust plastic, each marker measures 14.2 x 4.3 cm / 5.59" x 1.69". This set features a crisp white ink color, specifically formulated to stand out clearly on dark materials, ensuring your marks remain visible during complex construction or artistic tasks. 3. 【Smooth and Continuous Flow】Engineered for a seamless writing experience, the ink system prevents clogging and skips. The quick-drying formula ensures that your marks are smudge-proof and clear immediately after application, allowing you to maintain efficiency and precision in fast-paced work environments. 4. 【Precision Tip Variety】Designed with accuracy in mind, these pens provide high-precision nibs that allow for detailed labeling or bold marking depending on your project needs. The consistent ink delivery system ensures that every line is sharp and legible, reducing the need for corrections or re-marking. 5. 【Robust and Reliable Construction】Built to withstand the rigors of demanding work environments, the sturdy plastic casing protects the ink reservoir from impacts and pressure. These markers provide a dependable solution for craftsmen and contractors who require consistent tools that won't fail under heavy daily use. Package list: 3 x white permanent markers