Name Vernier Caliper Material Plastic Color Refill Black/Refill Blue Type Ballpoint pen Function Ballpoint Pen + Vernier Caliper Measuring Range 0-100mm Tip 1.0mm Size 14.8cm Weight 8g Features: -Bullet nib, plastic shell, metal nib, anti-collision, not easy to damage, stable and powerful pen -The writing is smooth and not easy to break the ink. Make full use of every drops of ink, start the pen continuously, and the line trace is thick and light color - It is convenient to press the return core. When writing, press the core out from above. After writing, move the big finger and press the return core -The multi-purpose pen can be used not only for writing, but also for measuring small objects -Replaceable refill, easy disassembly, replaceable refill, convenient for long-term use Package Included: 1 x Vernier Caliper (Refill Black/Refill Blue Optional)