Refill for the Ohto Horizon Gel Pen.
0.5 mm line width.
Orange Blackwing Eraser Refill - (Pack of 10)
$ 3.00
CDT Tradio Plastic Fountain Pen Refill: Blue
$ 4.00
Ain Stein 0.5 HB Lead Refill
$ 4.50
Kaweco Standard Fountain Pen Converter - Pearl Black
$ 7.00