Choosing among converters, cleaning & pen cases can be difficult when one choice is a dedicated refill component and the other bundles cartridges with a gift converter. The practical question is whether your next purchase is converter-first or cartridge-first. Sailor Fountain Pen Converter and Variety Black 20 Fountain Pen Ink Cartridges serve those different jobs. The listed prices are USD 11.45 and USD 8.99, a $2.46 gap, so the price difference alone does not settle the choice.
Quick verdict
Choose Sailor Fountain Pen Converter when the converter itself is the main item you want. Choose Variety Black 20 Fountain Pen Ink Cartridges when a cartridge supply is the priority and the included converter is an extra. The Variety description cautions that its gift converter may not fit any of your pens, so it should not be treated as the main reason to buy the pack.
At a glance
| Comparison point | Sailor Fountain Pen Converter | Variety Black 20 Fountain Pen Ink Cartridges |
|---|---|---|
| Listed price | USD 11.45 | USD 8.99 |
| Primary item | Fountain pen converter | 20 fountain pen ink cartridges |
| Listed color | Clear | Black |
Where each option wins
Sailor has the edge when your shopping list calls for a converter as the main item. Variety has the edge when the main need is cartridges and the included converter is a secondary extra. This is a format decision rather than a universal ranking: the better match depends on which item you expect to use first.
Sailor Fountain Pen Converter

The Sailor Fountain Pen Converter is the focused choice when the purchase is centered on a refill component. Its clearest reason to choose is the clear body: the description says it allows you to check the amount of ink left. That detail gives the converter a visible way to monitor its contents, while the listed round body and smooth grip describe its physical profile. The limitation is scope: the title identifies a converter, so it addresses a different need from the cartridge-supply format in this comparison. Choose Sailor when the component itself is the goal and ink-level visibility matters; the Variety pack is the more relevant direction if your priority is receiving black cartridges.
Variety Black 20 Fountain Pen Ink Cartridges

The Variety Black 20 Fountain Pen Ink Cartridges pack is the cartridge-first choice. Its concrete reason to choose is the choice within the pack: 10 cartridges have a 2.6mm bore and 10 have a 3.4mm bore, and the ink color is black. A gift fountain pen converter is included as an extra, making the package relevant to someone considering both refills and a converter. The limitation is explicit in the description: that gift converter may not fit any of your pens. Treat the 20 cartridges as the reason to choose Variety, not the converter fit. This pack suits a shopper who wants black refills in two listed bore groups; it is less appropriate when a dedicated converter is the sole priority.
Final choice by use case
- Converter-first: Choose Sailor Fountain Pen Converter because its clear body allows the amount of ink left to be checked.
- Cartridge-first: Choose Variety Black 20 Fountain Pen Ink Cartridges because its title specifies a 20-cartridge format.
- If the included converter is the deciding factor: Variety's description carries a fit caution, so that extra should not be the sole reason for choosing it.
The simplest decision is to match the purchase to the item you need first: Sailor for a dedicated converter, or Variety for a cartridge-led refill setup.