This Green Girl Studios sterling silver heart charm also consists of a small key that is also sterling silver. The key and heart are unattached so this would make for a great necklace, earring, or bracelet combination. Green Girl Studios uses the finest materials and are hand crafted to include amazing details. Would make for a great gift to a friend or someone that you love. The piece is approximately 20 mm tall and 20 mm wide. There are four small holes, one in the top, bottom, and sides of each piece. Holes are approximately 1 mm in size. There is also a larger hole in the center of the heart that can be used in the making of your piece or just left as is.