This idol of Shankar ji (Shiv Ji) is Made from brass.
Shankar ji lived in Himalaya. Snake are very dear to Shankar Ji and they have permission to come on thei body. Their Armour is Trident (Trishul) which is in their right hand. This above Statue of Shiva in Samadhi.
Lord Shankar Ji is called the God of the Gods. We bow our head in his respect.