♢ Product Size Length: 45cm (with an adjuster at the 40cm mark) Other sizes are also available. Weight: Approximately 1.61g Standards: Made in Japan, K18 (K18 hallmark present) ♢ 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. It is also hallmarked with "K18," the proof of genuine 18-karat gold.