Old Flat Yak Bone Mala Inlayed with Coral and Turquoise This listing is for an old flat yak bone mala embedded with coral and turquoise and there are 108 embedded yak bone beads with two large brass counters. The picture does not do justice for the actual item. Each bead measures 6mm thick and 17mm diameter Prayer beads usually used for meditation, counting mantras, prostration and so on. Wrist malas are used for prostration especially Malas are worn on the left wrist while not in use. You can usually see monks using malas in those Tibetan monasteries around the world. In those Tibetan Buddhist philosophy university, monks use the regular mala for debating. Just let me know if you have any other questions.