I am selling these at a low price because I purchased them in bulk. Brand new, unused item. Total length: Approximately 50cm Chain width: Approximately 1.1mm Weight: Approximately 1.07g Plate width: 3.1mm Stamped Pt850 This is genuine platinum, 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 touch of elegance. The opening of the round clasp, which is the most likely part to break, is welded for security. 40cm and 45cm lengths are also available. Accessories Rings k10 18K pt diamond