$69.95
1 retailer
Black Acrylic Vertex Fountain Pen
The Karas Kustoms Black Acrylic Vertex Fountain Pen is a 133.3 mm (5.2 in), 15.7 g plastic cap pen that ships with the two black Monteverde cartridges and a Schmidt K5 international standard converter refill.
- Length
- 133.3 mm (5.2 in)
- Weight
- 0.0 lb · 16 g
- Mechanism
- Cap
- Refill
- two black Monteverde cartridges and a Schmidt K5 international standard converter
Image not availableColor not published
What the data says
- Lighter than 96% of the 54 other pens we list in the 123–143 mm range.
- The brand lists 2 compatible refills, including standard international cartridge and standard international converter.
Computed from the specs below. How we write summaries.
Full specs
Last verified Oct 5, 2026
Unless marked otherwise, specs are from the manufacturer’s product page (karaskustoms.com).
| Length (closed) | 133.3 mm (5.2 in) |
|---|---|
| Diameter | 14.6 mm |
| Weight (manufacturer) | 0.03 lb (16 g) |
| Mechanism | Cap |
|---|---|
| Ink | Fountain |
| Refill (as shipped) | two black Monteverde cartridges and a Schmidt K5 international standard converter |
| Compatible refills | standard international cartridge, standard international converter |
| Body | Plastic |
|---|---|
| Pocket clip | No |
| Warranty | Lifetime Warranty & Service |
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