tul bp3 ballpoint, retractable, medium point, 1.0 mm, silver barrel, blue ink, pack of 12 tul get accuracy and control in an ergonomic design with these tul pens. super-smooth ink provides a consistent flow to help your writing look as it should, and these bp3 pens are retractable to prevent stains and stray marks. super-smooth and longer-lasting ink. engineered for optimal balanced writing comfort. retractable tip protects from unintentional marking. silver barrel pens with blue ink to provide noticeable marks.