If you were born in an Animal Sign that conflicts with the Monkey, it is recommended that you wear a protective amulet of either your Animal Sign friend, or one featuring a Pi Yao charm on a necklace, key chain, or hanging from your rearview mirror. Pi Yaos make great protectors, as they are loyal and will sacrifice themselves to protect the well-being of their owner.
 
This Pi Yao is big. The dimension of the Pi Yao itself is approx. 2 1/2" x 1 3/8" x 3/4". The overall length of the Pi Yao charm is approx. 11 1/2". The 5 emperor coins are made of solid copper and each of them is approx. 15/16".