The product is made of 925 Sterling Silver. IT IS PRODUCED WITH ANTI-TARNISHING SPECIAL RHODIUM STRENGTHENING TECHNOLOGY. It is 925 sterling stamped. The weight of the ring is approximately 3gr. It varies depending on the finger size. Width is 3.mm. We do not sell hollow wedding rings with filled insides. Our products are sent in wedding ring boxes and drawstring carrying bags. Choose the most accurate ring size. You can find out this way from a store that sells silver or gold rings.