Ring made of acrylic resin, ecological and solvent-free, and little pieces (inserted in the casting process) of semi-fossil oak wood (bog oak), 3500 years old, that we personally found and verified with Carbon14 analysis. Find out the whole story on our blog.

For the size: we use the US size system, but you can easily understand how to choose your ring size comparing with other systems.
If you have any doubt contact us!