The Rosary is made up of twenty "mysteries" (significant events or moments in the life of Jesus and Mary), which, following the Apostolic Letter Rosarium Virginis Mariae, are grouped into four series. The first contains joyful mysteries (recited on Mondays and Saturdays); the second, the mysteries of light (Thursdays); the third, the sorrowful mysteries (Tuesdays and Fridays); and the fourth, the glorious mysteries (Wednesdays and Sundays). Westmon Works celebrates the Rosary with this quality made with blue acrylic beads and includes a protective matching case. Makes for a great gift for any occasion, birthday, Confirmation, First Communion, Baptism.