We are selling these at a low price because we purchased a large quantity. Brand new, unused item. Total length: Approximately 50cm Chain width: Approximately 1.1mm Weight: Approximately 0.9g Plate width: 3.1mm K18 Yellow Gold K18 stamp present This is genuine 18K gold, not plated. Purchased from a chain shop in Okachimachi. Made in Japan at a domestic factory. The screw chain is designed to twist in a spiral, just like a spiral staircase. This is a delicate chain suitable for women, but men can also wear it for a stylish, understated look. The opening of the round clasp, which is the most vulnerable part, is welded for security. We also have 40cm and 45cm lengths available. Accessories Rings k10 18K pt Diamond 18K Gold Ring 18K Gold Necklace 18K Gold Pendant 18K Gold Bracelet