If your rollerball pen uses a Cross Gel Rolling Ball Refill as shown in the image above, then we have an exciting alternative for your Cross refill needs. Now you can upgrade your Cross Rollerball pen without having to retire your pen! We offer a work-around which allows you to 'plug and play' with rollerball refills in other colors and stroke lines. How would you like to write in a nice juicy broad line Cross refills instead of that scratchy 0.7mm fine point? Well, now you can! * Please compare the shape and dimensions carefully with your original, when ordering.