6R-16 (Light) Sterling Silver.
The 6B Round-16 Puzzle Ring is made with 16 Gauge round wire stock, thinner than the 12 Gauge yet still a strong wire.
This thickness is better for smaller fingers sizes 4 to 9 or so and is a wonderful counterpoint to the 6R-12 Heavy.
We call this ring the “round” because we leave the wire round instead of Twisting or adding the Flat pieces. It is a classic look that never goes out of style.