Taken from the video game The Legend of Zelda - perfect gift for gamer geeks! This is machine cut out of 3mm thick stainless steel and then polished by hand to a matte level. It is sized about 25x25mm (1x1").It is completed with a metallic ball chain which extends to 24" (60cm). Average women collar bone size is 18" but you can cut yourself to the length that fits you best, with just a regular pair of scissors - or let me know  what length you prefer.