This carved triple moon brass bell is 18x8.5x8.5cm.
bells are versatile tools within many traditions, they can be used as symbolic representation for the air element in elemental workings, used to cleanse minor spirits and unwanted energies from a space, they can also be used to 'ring' in a ceremony when working with other people, deities, spirits, familiars, etc, to identify the starts and end of ritual. 
 
This particular bell comes with a large (for the size of the bell) clapper, creating a loud sound when rung.