Sakura Crepas R-GBHN04#49 (10) Ballpoint Pen Refill, for Multicolor Ball Sign iD3C Ball Sign 4+1, 0.02 inches (0.4 mm), Pure Black, 10

(3-color ballpoint pen with a focus on black) From the Ball Sign iD series that allows you to effortlessly express your personality by selecting the black color from the 6 colors of black color to the "Ball Sign iD3C" ballpoint pen. The ink is not only a basic combination of black, red, and blue, but also a lineup of unique black colors such as night black and forest black. You can use your usual black and your own black. Ink colors include 3 patterns: A, B, and C. Available in 3 standard A-pattern colors for business use, as well as basic black and red, and an iD unique black to express your personality. A: Pure Black/Blue/Red. B: Night Black/Pure Black/Red C: Forest Black/Pure Black/Red (Functional and High Quality Design) The body color is black and white. Can be used for a wide range of occasions, from business to private use. Stylish and minimalistic slider is made with non-slip material for easy maneuverability. Metal clip and nib for a smart look. The strength of the clip is now more convenient to use. Rounded hexagonal body fits naturally in your hand. Superior writing comfort. Uses water-based pigment gel ink. Smooth writing reduces fatigue. Ball diameter is 0.02 inches (0.4 mm). The fine text is clearly and vivid. Water resistant and will not bleed through even if it gets wet. Refills available in all colors. Set of 10, perfect for refilling.

• Specifications: Refill for multi-colored gel ink ballpoint pen / 0.02 inch (0.4 mm)
• Color: Pure black. Quantity: 10
• Compatible products: Ball Sign iD 3C / Ball Sign 4+1
• [Features] Water-based pigment gel ink that writes smoothly and resists fatigue. It can be used to write fine text clearly and vividly
• [Size per piece/Weight/Material] 3.9 x φ0.1 inches (9.8 x 0.3 cm) / 0.08 oz (2 g) / Pipe: PP, Nib: Stainless steel, Ball: Ceramic