This multi-function pen features a 0.7mm ballpoint pen and a 0.5mm mechanical pencil. This is a Fukuoka Airport limited edition. I bought it as a gift, but I no longer need it, so I'm selling it. - Model: JETSTREAM 4&1 - Ink Type: Ballpoint pen & Mechanical pencil - Color: Black - Thickness: 0.7mm & 0.5mm Thank you for looking.