What's unique about this design is I made the skull appear as though the eye sockets are looking down the road as you ride, and the roller chain band is unique as well. It is solid 0.925 sterling silver, but the skull is hollowed out. I tried a solid skull, but I didn't like it because it tends to be too heavy and flops around, whereas with it hollow it is just right and it makes the eye sockets look darker so I like that too. It is patinated in all of the recesses and everything not patinated is polished to a very high degree. White ring box and white gift box included, see image. This Amazon Handmade listing is for sterling silver, however I can make it in other metals too, just let me know what metal you want and the size and I'll quote you a price. Also, I can make it in any size in addition to the sizes listed in the drop down list above; quarter sizes, larger, smaller, etcetera. White ring display box and gift wrapping box included.