Produces clean, vibrant lines to get your writing noticed. Acid-free, archival quality ink is perfect for important documents. Zebra delivers high-quality in a name you can trust. Quality and value are paramount to the products Zebra manufactures. Every product undergoes vigorous quality assurance testing to guarantee writing performance and maintain the standards Zebra customers have come to expect. Zebra offers a selection of refills and accessories to complement and extend the life of the most popular Zebra writing tools. The steel ballpoint F-series uses smooth, easy-glide ink for a more controlled writing experience.