These Japanese prayer beads called nikka juzu, “daily telling beads,” have a distinctive structure of two entwined strands typical of the Jodo school of Pure Land Buddhism. The larger strand of twenty-seven beads is used for praying while the smaller strand of twenty beads is used for counting. Two short strings of recorder beads, one with ten beads and another with six larger beads are used much like an abacus for adding the total number of the recitations. This complex and clever structure was perfected in the sixteenth-century by a monk named Shonen.