Spiral Collar by ISA Collection. Material: 925 Sterling silver. Spiral collar is made from 2 mm silver wire and a black silk band. All ISA Collection jewellery is designed and handcrafted in Oslo. As a result of the crafting process, you may find some small differences in shape and size. SPLIT Size (S): 35cm adjustable to 37cm Size (M): 37cm adjustable to 40cm Weight: 25g SPLITThis piece is produced on a made-to-order basis and will be shipped within 2-4 weeks from Norway. EU shipping: £15 Global shipping: £25