Pens
Uni-Ball Onyx Rolling Ball Pen - 0.7 mm Pen Point Size - Black Ink - 12 / Dozen by Uni-ball
Sold as 1 Dozen Excellent for carbons and multi-part forms. Easy to hold matte black barrel. Liquid ink.
https://www.bizrate.co.uk/pens/uni-ball-onyx-rolling-ball-pen-oid37571340846.html