【High-Quality Ballpoint Pen Refills】 These ballpoint pen refills have a fine 0.5mm ball diameter and provide a smooth writing experience. They are especially ideal for the JETSTREAM series. 【Versatile Compatibility】 The SXR-80-05 5P is compatible with various ballpoint pens, including the SXE3-400-05, MSXE3-500-05, and MSXE5-1000-05, offering a wide range of choices. 【Ink Color】 The ink is black, perfect for everyday writing. Suitable for use in business settings and at school. - Ball Diameter: 0.5mm - Ink Color: Black ⭐︎Photo 2 → Model Number: SXR-5 Unopened set of 3 - Compatible with: SXN-150-05 and others ⭐︎Photo 3 → Model Number: SXR-80-05 5P Opened, 6 refills - Compatible with: SXE3-400-05, MSXE3-500-05, MSXE5-1000-05 and others Thank you for viewing. ※Stored at home after purchase. Please understand. Will be wrapped in bubble wrap for shipping.