This is a 1017 ALYX 9SM Rollercoaster Buckle Chain Necklace. It has a simple design, but the buckle part is fashionable and can be matched with various outfits. It's the perfect accessory for this time of year. It goes well with Korean, street, and mode styles, making it a perfect item for casual style coordination. Size: Length: 47cm, Buckle part: Width 3cm, Height 3.5cm. *Please note that these are amateur measurements, so there may be some errors. Color: Black Since there are no accessories, it is being sold at a low price. Judging from the buckle part, the back screw, and the material (brass), there is no mistake that it is genuine. Questions will be answered in the comments section before purchase.