For handwritten notes The roller is not only a constant companion in everyday working life. It is used to write down information and record thoughts. So it's annoying when it no longer works effectively. With the replacement cartridge from Pentel, you can ensure smooth employees. It is easy to insert and prevents unnecessarily long interruptions. It also means that the pen can be used for longer, which is good for your wallet and the environment. This item writes with gel, which means it has a thick consistency that dries much faster than normal ink. There is a stable ball at the head of the pen, which applies the ink evenly to the surface. The blue colour is pleasantly restrained. Make big cost savings with little effort.