Overview Reviews Product Description Parker Rollerball Refill Medium Tip Black Ink provides an extra smooth writing experience and better ink flow, offering optimal reliability and performance. Tip: Medium. Ink Colour: Black Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Parker Parker Rollerball Refill Medium Black Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments