Experience smooth and effortless writing with the Pentel® EnerGel® X Retractable Gel Pen Refill in 0.5 mm black. This refill is specifically designed to fit the BLN75-A pen model, ensuring a perfect fit and seamless ink flow. The 0.5 mm tip size allows for precise and detailed writing, while the black ink adds a touch of professionalism to your work. With Pentel's high-quality gel ink formula, you can enjoy a smooth and consistent writing experience every time. Refilling your pen is quick and easy, allowing you to continue using your favorite pen without interruption. Upgrade your writing experience with the Pentel® EnerGel® X Retractable Gel Pen Refill in 0.5 mm black.

Key Features:
• Specifically designed to fit the BLN75-A pen model
• 0.5 mm tip size for precise and detailed writing
• Black ink adds a touch of professionalism
• Pentel's high-quality gel ink formula for smooth and consistent writing
• Quick and easy refill process
• Enhance your writing experience with this reliable refill option