9.5 x 8 mm beads, inner diameter... 16 cm Inner diameter can be adjusted. Effects and Features of Rudraksha (Bodhi Seed) * Powerful purification effect * Yoga and mantra practice support * Support for enlightenment and liberation * Good luck, warding off evil, amulets, dispelling negative energy * Stress reduction * Stabilization of mental state * Fulfilling wishes * Release from sin, pain, and suffering * Guidance to success and a perfect life * For those who are easily affected by negative energy and are troubled