Features: Package includes 10pieces Replaceable Ballpoint Pen Refills. Enough quantity for daily writing need. Standard ballpoint pen refill, easy to replace. Suitable for most twist action ballpoint pen, multifunction pen. Ballpoint pen refills provide you a smooth and quick writing, and will not leave dry spots. Widely used for school, office, students and office workers use. Specifications: Inks Color: Black; Blue; Component: Metal Size 1: Approximately. 45mm/1.77in Size 2: Approximately. 63mm/2.48in Size 3: Approximately. 70mm/2.75in Size 4: Approximately. 82mm/3.23in Size 5: Approximately. 116mm/4.56in Size 6: Approximately. 95mm/3.74in Size 7: Approximately. 44mm/1.73in Size 8: Approximately. 62mm/2.44in Size 9: Approximately. 37mm/1.45in Size 10: Approximately. 55mm/2.16in Size 11: Approximately. 115mm/4.5in Weight: Approximately. 10g Package Includes: 10Pieces Ballpoint Pen Refills note: 1.Please allow 0-1cm error due to manual measurement. make sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color