This is a sterling silver plated, oxidized and polished wallet chain (S-hook casting). The chain is made by hand-connecting brass cast S-hooks. The solid brass chain is plated with sterling silver and then painstakingly finished with an oxidized and polished treatment using sulfur. Due to the oxidized and polished finish, it has the characteristic blackening of silver products from the start. The contrast will become more distinct with natural polishing through use. If not used, it will gradually turn black due to natural sulfurization. All base metals (including hooks, snap hooks, and split rings) are brass. Size: Total length approximately 46 cm (including hook, snap hook, and oval ring) The size of the S-hook is approximately 27 mm x 11 mm (outer dimensions). The wire diameter of the oval ring is 3 mm. Hook L size: Total length approximately 7.0 cm Snap hook S size: Total length approximately 4.3 cm Weight: Approximately 121 grams Regarding Length (Total Length): The length can be changed in approximately 2.5 cm increments, but this may not be possible depending on the situation. The length may vary by about 1 cm depending on the shape of the links. If you wish to change the length, please inquire via the question feature. If possible, we will create a new listing specifically for you. Notes: This listing is for the wallet chain only (including hook, snap hook, and oval ring). The photos are samples, so the color and specifications may differ due to aging. This is the price for one wallet chain.