One side of the big coin has been carved with Bagua sign and the reverse side has the safety talisman. The Chinese characters on it are In and Out Safety. One big mystic knot and red tassel attached to it can attract more good energy. This Bagua safety coin is the ideal for whom travels a lot. You can hang it at home or carry such safety talisman with you. The overall length of the bagua safety coin talisman is approx. 13 . The diameter of the big coin is approx. 2 1/2 and it is made of metal.