2 Pack of 5ML Syringes (16G Needles) used to fill up fountain pen ink cartridges. 

Syringes are a neat way to fill up your fountain pen. Many prefer this because they feel very in control, they rarely make any mess, and you can get every last drop of ink! You can use it to fill empty ink cartridges, converters, or eye dropper pens.  Don't worry these aren't incredibly sharp as a needle would be, but do use with caution and keep away from pets and children.