This paint mixer is suitable for all types of paint, both acrylic and enamel. It mixes the medium with the pigment perfectly and saves a lot of work instead of mixing with a cocktail stick or mixing spoon. It does NOT fit in a Vallejo bottle as standard.
The paint mixer requires 2x AA batteries to operate (NOT INCLUDED).
For best results, do not turn on the mixer until the tip of the mixer is dipped in the paint. This will prevent paint from splattering everywhere. Let the mixer do its work until you feel and see that the medium and pigment are well mixed.
The diameter of the mixer head is 11mm. and therefore too big for example the standard eye-dropper pots of Vallejo, Scale75 and The Army Painter. However, with some skill you could grind/file the head a bit, for which it does fit in an eye-dropper with a 9mm opening.