Vedic Prayer Rings
Prayer Rings that come in a set of two. One of the rings has 12 nodules. The other has 9. They are to be worn on the index fingers with the respective thumbs doing the counting on each hand.
When a set of 9 mantra japam have been completed, as counted on the ring with the 9 nodules and marked by the return to the biggest bump, one of the bumps on the 12-nodule ring can be moved with the wearer repeating the process until there is a return to the biggest bump there. At that point, the wearer will have performed 108 recitations, a holy number in Vedic culture and often the goal number for mantra.
You can keep these on a chain around your neck, in your pocket or purse, or indeed, wear them as rings to always be ready for your next mantra recitation.
For the large 12 nodule ring, the dimensions are approx. 31 mm x 32 mm x 6.5 mm. For the large 9 nodule one, they are approx. 30 mm x 31 mm x 6.7 mm. For the small rings, the scale is set to 80% along each dimension.