Features: Discovering precisions and convenience with our 2 in 1 Vernier Caliper Ballpoint Pen, perfect for both writing and measuring tasks. Crafted from ABS material, this pen features a clear vernier caliper scale for accurate measurements up to 100mm and a smooth writing 1mm black/blue ink ballpoint tip. Great for engineers, woodworkers, carpenters, students, and professional who require precise measurement and note taking capabilities. Perfect for use in work, study, or daily life, whether you're measuring object dimension, drafting plans, or marking positions. This lightweight gadget seamlessly combines functionality and style, making it a essential addition to any toolkit or stationery collection. Specifications: Materials: Plastic Color: As The Picture Shows Type: Black Core/Blue Core (Optional) Package Weight: approx.20g Size: approx.15cm/5.90in Package Includes: 2Pcs Vernier Caliper Pen note: Please allow 1-2cm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!