The Essenceely Stainless Steel Ball Pen ballpoint and rollerball pen set is made of recycled stainless steel. Opting for a recycled stainless steel pen contributes to reducing waste, making it a more sustainable choice. Pen ink colour: Black. Nib size: 1. 00 mm. Writing length: 800 metres. Box size: 16. 2 X 5. 1 X 2. 7 cm.