Mantras are the means to achieve what you want. Used since ancient times have helped a large number of yogis and meditantes reach States of peace and serenity.
For Buddhism the number 108 is a special issue. Many of the bracelets used by the monks 108 accounts to count mantras that sing. It turns our ring to tell all the mantras you carry and thus get closer to enlightenment.
The ring is made of stainless steel and has a width of 7mm.