The St. Benedict Medal Key Ring is a powerful sacramental that holds deep spiritual significance for Christians. It is used to call down the blessing of God upon the faithful and is believed to provide protection from curses, evil, and vice. The medal is also associated with warding off diseases and protecting good health. The key ring is often carried as part of a rosary or embedded in a scapular, and it can be worn separately. The medal's reverse side features the exorcism phrase "Vade retro satana," which is a prayer for the intercession of St. Benedict. The medal's use is not based on superstition but on the fervent disposition of those who use it, as it is a sacramental instituted by the Church to prepare us to receive the fruit of the sacraments and to sanctify different circumstances of our lives. 

3.3 cm with key ring, enamelled in red and blue with golden surround.