♢ Product Size Length: 45cm (with a 40cm adjuster) Other sizes are available. Weight: Approximately 2.2g Specifications: Made in Japan, K18 (K18 stamp present) K18 is made in Japan, 18K is made overseas. ♢ Product Description This product is of the same high quality as 18-karat gold sold in department stores and jewelry stores. It is not 18-karat gold plating, but solid 18-karat gold, so there is no worry of it peeling off. The "K18" stamp, which is proof of genuine 18-karat gold, is also engraved.