These J.Burrows Ballpoint Pens are a great option for writing smooth lines in a variety of locations including at home or in your workspace. The pens have a 1.0 mm nib to create medium sized lines and feature oil-based ink. Features: The pens have a medium, 1.0 mm nib perfect for a variety of applications. This pack is perfect for stocking up your pens in one go. The pens contain a smooth, oil-based ink. They have a sturdy plastic barrel with a pocket clip which make them easy to take on the go. This pen has a writing capacity of over 1000 metres, meaning you can use it for a long duration. These pens contain blue ink. There are 50 pens in this pack. J.Burrows is the dependable choice for essential office supplies that are of great quality and value, and is designed for use in the medium business, by the sole trader and the work-from-home freelancer.