Waterman Ballpoint Refill Medium - BlueEnsure that your Waterman ballpoint pen is always ready when you need it with this ballpoint refill. To replace, simply unscrew your Waterman pen, remove the empty cartridge and reassemble the body. The reliable ink resists drying out and writes easily on many types of paper. Ideal for all kinds of writing occasions, this type of ink will dry quickly which removes concerns about smudging or smearing. Features Refill Blue Medium nib, Blister of 1 1 ink