Here you have a pack of ten cute little glass bottles with silver coloured metal caps which simply screw on.
With the cap fitted the bottle is approx 44mm tall x 10mm wide so these are a great size for pendants which would hold approx 2ml of oil.
The metal caps have a hole that is suitable for 1mm cord or similar.
The bottle is suitable for crystals, locks of hair and herbs. Many people turn them into spell bottle pendants and add a little written spell, oil and herbs etc.