Waterford Ballpoint Pen Refills - Blue Medium 2 Pack Large capacity, smooth writing ballpoint refills for Waterford ballpoint pens. Each package contains two refills Works in all Waterford ballpoint pens. Refills are same format as Parker ballpoint refills and will work in Parker ballpoint pens Waterford Ballpoint Pens either twist or click to extend the refill. If your pen has a cap it needs a rollerball refill