About Mahachakra Vajrapani

Mahachakra-Vajrapani is a form with three heads and a third eye, and with six arms and two legs. The icon is adorned with symbols of vajra, snake with yum held in its main hands, and as shakti it to his left is shown holding a skull-cup (kapala) and grigug (chopper or hooked knife). The icon is shown stepping over Brahma on the right and on Shiva to the left.
Sakya Thinley Rinchen Ling Buddhist Centre