Uni-ball Jetstream Fine Point Roller Ball Pens Refills for Standard Pen Type -0.5mm-black Ink-value Set of 10

Experience Ultra-Smooth Writing with Our Black Ballpoint Pen Refill! - Premium Ink Technology: Outfitted with ultra-low friction ink technology, this refill ensures a remarkable reduction in friction by up to 50% compared to traditional ballpoint pens, offering a supremely smooth writing experience. - Bold and Vivid Lines: The pigment ink creates sharp, dark lines, making your writing stand out, while the 5mm ball diameter ensures a consistent ink flow for precise and clear script. - Compatibility and Dimensions: This refill is designed for easy replacement, providing a quick and efficient way to extend the life of your favorite ballpoint pen. It measures approximately 115mm in length, 4.1mm in thickness, and 4.1mm in shaft diameter, making it a compact choice. - Durable Construction: With a shaft made of PP and a tip made of stainless steel, this refill is built to last, ensuring you enjoy a long-lasting smooth writing experience. - Specifications: - Ink Color: Black - Ink Type: Oil-based - Dimensions: Length 115mm x Thickness 4.1mm x Shaft Diameter 4.1mm - Ball Diameter: 5mm - Materials: Shaft (PP), Tip (Stainless Steel) - Quantitites: Set of 10 Black Ballpoint Pen Refill