MATERIAL: Polymer clay and hypoallergenic - stainless steel studs Rings are about a size 9, however if you would prefer a different ring size, please leave a comment with your preferred size in the comments while checking out and it will be made-to-order for you. Scroll to the last picture for a guide on how to measure your ring size! Note: As this item is handmade, please expect slight imperfections. Every piece is unique and no two pieces are the same. Each purchase is strictly non-refundable and non-exchangeable.