Small bottle with screw on top. The insert with the threads is very nice quality - these screw on beautifully with none of the squeaking or binding that you normally associate with small, cheap bottles. OD:57.3 x 20.2mm, ID:1 dram bottle. There is a hole in the decorative doo-dad on the top - so you can hang as a pendant. Peyote stitch around it, or put some cotton wool in with your favorite scent for those times you need a pick me up.
By the each.