Uniball Jetstream Gel Pens really set the standard for other brands. They write well, do not smudge, and have a lot of ink inside of them. The ink flows well and the color remains intact on any quality paper. The other brand gels would leak, and I haven’t seen any of that with Uniball. Overall, this pen is stylish and feels better in my hand while doing my writing errands. This 7mm pen is a mainstay in my home and I know that I can depend on it.