For handwriting that impresses. The roller pen is not just a constant companion in everyday work life. It is used to jot down information and capture thoughts. Therefore, it is quite frustrating when it no longer functions efficiently. With the replacement cartridge from Uni-Ball, you ensure smooth operation. It can be quickly installed, preventing unnecessarily long interruptions. Additionally, it allows the pen to be used for a longer time, which is good for your wallet and the environment. This product writes with gel, providing a thick consistency that dries much faster than regular ink. The fine tip ensures clear writing and absorbs quickly. Furthermore, it uses the color blue. An empty roller can easily become a nuisance at important moments. So always have enough replacements on hand.