the Pen Barrels in This Ball Pen & Rollerball Pen Set Are Made of Matte Colour Anodized Recycled Aluminium Metal with Shiny Chromed Accessories. Aluminium Metal is a Highly Recyclable Material & by Choosing This Pen Set, You Can Support More Sustainable Practices & Give New Life to Discarded Aluminium Metal Materials. These Pen Serve as a Practical & More Sustainable Option for Individuals & Organizations Looking for Eco Friendly Writing Instruments. Pen Ink Colour: Black. Nib Size: 1.0 Mm. Writing Length: 800 Metres. Delivered in a Black Gift Box with a Black Silk Ribbon. Box Size: 16.2 x 5.1 x 2.7 Cm. Minimum Quantities Apply.