These polished black bone beads have been individually shaped from recycled cow bone. Each bead measures approximately 5 x 6-7mm diameter with hole size of 2mm. The length of strand measures about 22" long. Look carefully and you will see the grain of the natural material. This strand has about 108 beads so it can also be used as a Mala. Color of thread and tassel may vary from photo. Great Value!