♢ Product Size Length: 45cm (with a 40cm adjuster) Other sizes are available. Weight: Approximately 1.61g Standards: Made in Japan, K18 (K18 stamp present) ♢ Product Description This is a high-quality product comparable to 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 stamped with "K18," the proof of genuine 18-karat gold.