This includes some of the must have items for any Fountain Pen user. Pen flush for cleaning out the excess ink left over after emptying and flushing the pen with water. The Bulb Syringe which makes flushing cartridge/converter pens faster then just using the converter. You also have the Ink Syringes, these come in handy for flushing out cartridges and then refilling them if you plan on re-using them instead of tossing the empty cartridges. The 5ml sample vial is also handy for using a converter to draw up the pen flush to further flush the feed and nib of any old ink that just flushing with water and the bulb syringe didn't get out.
While this set doenst include everything one would need, it does include the basics that one needs.