Applying Liquid Eyeliner is a skill, making a liquid one is a lot easier... weill it is from my perspective as I have never mastered the art of applying it without it ending up everywhere excepr where it is supposed to be! What I can do is a lash serum - some people like to use a mascara tube, others an eyeliner tube. This tube can also be used for a liquid lip liner.
If you want to try making your own - there are lots of recipes available on Google.
This matt silver eyeliner container matches the matt silver compacts and lip containers,
Total Length : 90mm long,
Diameter : 16mm
Total capacity : 8ml
Bottom section = 50mm,
Lid section = 40mm
Material : PETG (Polyethylene terephthalate glycol)
Wand : Nylon
Brush : Straight bristle
Current stock has a black wand and tan brush