The length is about 60cm. I bought it at a used clothing store in Fukuoka a few years ago. I think the purchase price was around 30,000 yen. There is a STERLING (Sterling) stamp. The weight is 20g. It is a no-brand item, but I think it is a good deal compared to branded items like Beams. It is simple, easy to match, and very useful. You can stop it at any link as shown in the last image, so it is easy to arrange.