Dang, this is cute! Tiny little clear bottle... good thing we made some tiny labels to fit it. Approx. 19mm tall.
See the small photos below for a size comparison with some of the other resin bottles from the Magic Potions Kit (that kit is sold out but you can still see photos and get more info about all the bottles from that kit page).
These are also included in the Mini Cocktails Kit; see all the other kit components available to buy separately.
This item is in Dollhouse 1:12 Scale.