Vajra

The vajra is a legendary and ritualistic tool, symbolizing the properties of a diamond (indestructibility) and a thunderbolt. It is also described as a "ritual weapon". It is used symbolically by the dharmic traditions of Hinduism, Buddhism, and Jainism, often to represent firmness of spirit and spiritual power. The use of a bell and vajra together as symbolic and ritual tools is found in all scho... (Wikipedia)