4-6ml Duchess Caroline
5/6/16 Update: Petite, round holds approx. 4-6ml nail polish bottle with a decorative foot. Click on the FAQ's for dimensions.
Bottle Length & Width: 21.3mm x 21.3mm (0.839" x 0.839")
Brush Size: 13/80/34
Cap Height: 21mm
When we say a brush measures 13/80/34, this means that it will fit a bottle that has a 13/415 neck finish, that the cap it will fit needs to have a 80 core and that the length of the brush is 34mm long.