A mathematical ruler, white vein, old cast

The usual thickness 4.7 - 5.4 millimeters, heart thickness 9.3 millimeters, ruler length 40 centimeters, width 55 millimeters, weight 226 grams. One ruler is sufficient to make 3 prayer beads 4/7 Throoi. Number of beads 99 beads for each prayer bead. You can request sorting via WhatsApp for two rulers. To produce a larger size prayer bead, two sorted rulers are enough to make a prayer bead 8/12 barrel or dove egg. Number of beads 55~59 beads with full spacers. In addition to an extra soft prayer bead.