The Blue Peace Signs are about half an inch in diameter, and about an eighth of an inch thick. The French hooks are Sterling Silver for those of us who need hypo-allergenic materials. These also come with one rubber earring back for each French hook to aid in keeping the earrings from coming dislodged unintentionally. Each item in my inventory is handmade. So, the product you see in the picture may or may not be the one you receive when you make your purchase. Ering - 004