Rollerball pens write with ease and feel great. These promotional logo pens are made of water based liquid or gel ink and are designed for convenience with a smooth look. What makes writing with a custom rollerball pen so effortless is that you do not need as much pressure to write and it comes out looking clean, keeping less stress on your hand. Another advantage is that you will get finer lines than a ballpoint. Not only smoothly stylish, but effortless to use while advertising your brand name. Promotional Rollerball Pens or an alternative to the gel pen. Both have a fluidity when writing making them all about style, comfort and functionality.