IWC 18mm Folding Buckle b Size: 18mm Material: Stainless steel Accessories: Spring bars (aftermarket) Although unused, it has been stored at home, so please forgive any minor scratches. It can be attached to straps of various series if the buckle side of the strap is 18mm. In addition to leather straps, it can also be used with rubber straps (images 7-10, reference product, genuine Portuguese). Shipping is done on the same day or the next day. If it will be shipped the day after, we will notify you after your purchase. Also, we would appreciate it if you could contact us within 12 hours of receiving the product.