This is a screw-type nickel concho with a diameter of approximately 37mm, a replica of a Morgan concho. Product Name: 21372_Leather) Concho 37φ 1 Dollar Product Number: 60610021 Seller: Konyashoji Co., Ltd. Manufacturer: Ivan Leathercraft (a Taiwanese leathercraft supplies manufacturer) Please consider your purchase carefully as we do not accept returns after purchase. Thank you for viewing.