In old Tibet traveling through the Himalayas region was not without danger. The inhabitants of the Land of Snows proceedings therefore special attention to their protection. This included small metal plaques, reflected the gods of Tibetan Buddhism with protective functions.
For Tibetans, these plaques are more than just an ornament. They are used even today as a protection against accidents, diseases and evil spirits.
There is a great similarity between protective plaques and thokchas, because both protect the owner. The difference is that thokchas have an eyelet and so can be worn on the neck with a string. Protective badges do not have an eyelet and are worn in clothing or even in pockets.