This lot of 4 vintage biker style skull rings includes 2 black rings in sizes 9 1/2 and 10, 1 goldtone ring in size 11, and 1 silvertone ring in size 7 1/2. These men's rings are vintage in style, with an undated era, and feature a biker theme. The rings are not signed and are made with unknown metal materials. Perfect for those who appreciate unique and edgy jewelry, these skull rings are a stylish addition to any collection. The goldtone one looks darker in some areas the ring, that might be the way it's supposed to look. I don't really know. The one black ring is not perfectly round. Please look at the pictures very closely, thank you.