Features: Experience smoothly writing with our twist action ballpoint pen refills. Package comes with 50Pieces Ballpoint Pen Refills, sufficient quantity to meet daily replace and share need. Crafted from metal, these pen refills provide smooth and consistent writing without clogging, making them great for long time use. Great for students, teachers, office workers, writers, and artists. Each refill size: 107mm/4.21inches, fit for most twist action ballpoint pen, multifunction pen. Perfectly suited for various settings such as school, office, art studio, and meeting where creativity are essential. Enhancing your writing experience with these ballpoint pen refills that fit most standard pen, offering both functionality and stylish. Specifications: Color: Silver Component: Metal Inks Color: Blue; Black Size: Approx. 10.7cm/4.21in Weight: Approx. 100g Package Includes: 50Pieces Ballpoint Pen Refills note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color