Huginn and Muninn are the two ravens of Odin, representing thought and memory respectively. These ravens would fly all over Midgard in search of information to bring back to Odin. Odin's association with these two lead to him being referred to as the Raven God.
This 925 Sterling Silver ring has the heads of Huginn and Muninn at either end. It's inspired by the Bamberg Casket dating to about 975 CE. This Scandinavian work is made of oak, walrus ivory, gilded copper and precious stones. Its replica is exhibited in the Bavaria National Museum in Munich, Germany.
This ring is slightly adjustable, but bending it repeatedly can weaken the metal. If you can't get the perfect size for your intended finger, It is recommended get one closest to the size of the finger you're planning to wear it on and to only bend it ONE time to adjust the fit to the finger you've chosen. Do not to bend it again to suit another finger as repeated strain will weaken the metal.