The front of the medal depicts Mary standing on a globe, with the head of a serpent beneath her feet. Circling the oval-shaped medal is the signature, "O Mary, conceived without sin, pray for us who have recourse to thee." On the reverse, 12 stars surround a large "M," from which a cross arises. Below the "M," the medal depicts two flaming hearts. The left heart, circled with thorns, represents Jesus. The right heart, pierced by a sword, symbolizes Mary.