FM FM42 Unisex Metal Spike Studded Punk Rock Wide Strap Leather Necklace PN1002 Costume Jewelry. The necklace measures 35-41cm(13.78"-16.14") in length. The necklace measures 2cm(0.79") in width. Material: Leather, Alloy. Normally, the transportation time is about 7-15 days.