Pen Stabilo Basketball Pen Marker Pen 1870 Blue Black - Gel Pens - AliExpress
Palimpsest: Stabilo S Move or the Basketball Pen
Premium Felt Tip Pen - STABILO Pen 68 - Tin of 50 - Assorted colors
Pen Stabilo Basketball Pen Marker Pen 1870 Blue Black - Gel Pens - AliExpress
File:STABILO s move.JPG - Wikimedia Commons
Steve Trewick M7STZ on Twitter: "Oh, a word about pens. I use Stabilo s'move basketball. Good grip, easy to see (orange), very quick drying #VIHacks http://t.co/D8t7zdwRd9" / Twitter