The salvaged horn 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. Both types of shell come from New Zealand and the abalone is unique in that no two pairs will ever be identical. Due to the natural characteristics of the material slight variations in color may occur. The 19ga surgical steel post is 100% hypoallergenic.