Caliper Style Ballpoint Pen with Blue Ink Refill

This caliper-style ballpoint pen combines function and novelty in a compact, promotional writing tool. Designed to resemble a mini vernier caliper, it features a built-in ruler design on the barrel and a blue ink refill for smooth everyday writing. The pen body includes movable slider accents for added fun and visual appeal, making it a great conversation starter or desk accessory. Perfect for engineers, students, STEM programs, trade shows, and promotional campaigns, it delivers both writing utility and brand visibility. Its lightweight plastic build and retractable tip make it portable and easy to use. Custom logo imprinting is available on the barrel, making it an ideal gift for educational institutions, corporate giveaways, or science-themed events.