This brass dorje is fairly hefty at 7 inches and 8 ounces. It should be used with a bell of similar size. It is held in the right hand and is considered a thunderbolt or diamond that destroys all kinds of ignorance. And like a diamond, is considered indestructible. The thunderbolt scepter is the male principle, the bell the female. These two are the most often used objects on the Vajrayana path. In the hands of a master, these inseparable two signify the unity of masculine power and feminine energy.