Metal Unity Cross. Alloy of different metals.  Made in Italy. Choose from three different sizes.  

"Because of the depth of its symbolism, Christ and Mary, it began to appear on the pectoral cross of cardinals, bishops, archbishops, priests and religious communities.  This was the case of Mother Teresa of Calcutta, who decided that her entire congregation would wear it.  In this way, many communities and many people in the entire world assumed it."