Due to the natural characteristics of the tropical hardwoods used to carve these earrings, some variations in color may occur. The salvaged bone used to hand-carve these earrings comes from a domesticated water buffalo used for cultivation and food. To minimize waste, they are respectfully utilized for this form of art and income. The white colored bone has a vibrant polished shine, is light in weight and very durable. The 19ga surgical steel post is 100% hypoallergenic.