A.G. Spalding & Bros Hexagonal Ballpoint
APT Studio Kensa
Antou1010 Pen C/Pen C mini
Caran d’Ache 849 ballpoint/849 rollerball
Kaweco Sport gel roller/Special ballpoint
Krama studio ballpoint/rollerball
Leuchturm1917 Drehgriffel/Drehgriffel Monocle
Levenger L-Tech rollerball
Loclen (many)
Mark's Inc. Days Brass Pen/Tous Les Jours Ballpoint/Tous Les Jours Pen Brass Barrel
Monami 153 ID/White & Black
Muji Aluminum Ballpoint Pen/Aluminum Gel Pen
Namisu Naos
Ohto Horizon/Pencil Ball Ballpoint
Pentel Energel Hexreform/Business BL447
Retro 51 Hex-O-Matic
Rhodia ScRipt ballpoint
Rotring 600 Ballpoint/600 Rollerball/Newton Rollerball/Lava Rollerball/Rapid Pro
Spoke Design Pen
Staedtler Concrete Ballpoint
Troika Construction
TWSBI Precision Ballpoint
Tetzbo (many)
Uni Jetstream edge
Wörther Compact Ballpoint/Compact Metal Rollerball/Shorty Ballpoint/Spiral Ballpoint
Ystudio (many)
Zebra Kado2