The amulets of Buddha Kshitigarbha.

Ksitigarbha Buddha
The Buddha Kshitigarbha (Chinese: Dizang, Tibetan: Sa-Ee Nyingpo),
is the Boddhisattva who took the vow not to attain enlightenment
before hell is empty.
He is represented most often with in his left hand
un Jewels that fulfill the wishes and in the right a cane
which serves him to force the door of the underworld to go there to teach the Dharma.
Amulets of the Buddha Kshitigarbha are quite rare.
Ce Buddha is traditionally the protector
pregnant women,
children and travelers,
it protects against natural disasters and prolongs life.
By the nature of its action, it is also a Buddha very close to anyone with humanitarian action and going to dangerous places to help others (firefighters, first aiders, doctors ...).