These prayer beads are made from genuine Irish Connemara marble. This rare marble, somteimes referred to as the "gemstone of Ireland," is a beautiful jade green. Other beads in the set are of created opal; the cross and center feature Celtic lacework and Trinity symbolism. The length of the set is 16". This is one of the most unique sets of prayer beads currently available. Please note that Kelly's items ship from Canada; allow 2-4 weeks delivery.