Crafted from ABS materials, this pen features a clear vernier caliper scale for accurate measurements up to 100mm and a smooth writing 1mm black inks ballpoint tip. Great for engineers, woodworkers, carpenters, students, and professional who require precise measurement and note taking capabilities. Discovering precisions and convenience with our 2 in 1 Vernier Caliper Ballpoint Pen, for both writing and measuring tasks. This lightweight gadget seamlessly combines functionality and styles, making it a essential addition to any toolkit or stationery collection. for use in work, study, or daily life, whether you're measuring object dimension, drafting plans, or marking positions. Colour:Silver Material:ABS+Stainless steel Package Contents: 10 * Vernier Caliper 0-100mm Ballpoint 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.