One of the most well-known Halloween symbols, pumpkin head started with the Irish tradition of turnip carving every Samhain (or "Feast of the Dead") to scare the evil spirits away.
Similar to that concept, this pumpkin head pendant is a symbol of protection as it is believed to provide the individual safety from the unknown and bewildering forces.
In Chinese culture, pumpkins are considered to be a symbol of prosperity and fortune. They also represent fertility and amplesness as they signify abundance during the celebration of harvest season.