This is a K18 (18-karat gold) Kihei necklace. This is the most popular 6-sided double type. It's 20g, so it has a moderate volume. Also, it has the reliable Japan Mint mark. The length is approximately 40cm. It can be worn unisex. *It may be short for men. Please note that this is a spring ring clasp, not a clasp closure. There are some scratches on the clasp, but there are no noticeable scratches. *Please understand that this is a used item. There are no accessories. Only the necklace is included. It will be shipped in a package + cushioned envelope + dedicated cardboard box. 【Material】 K18 18K Yellow Gold *Japan Mint mark 【Design】 Kihei Necklace 6-sided double 【Size】 Length → Approximately 40cm Width → Approximately 4-4.1mm *Typically, men's products are 50cm, and women's products are often 40cm. It will be a little short for men. Please pay attention to the length. 【Grams】 Approximately 20.50g 【Other】 Spring ring clasp 【Accessories】 Only the main body The color may look different depending on your monitor. Size measurements are taken by amateurs, so please understand that there may be some errors.