[Size] #0 - #17 Face: approx. 8mm (0.315in) x approx. 8mm (0.315in) Band width: approx. 0.7mm (0.028in) - 1.2mm (0.047in) Band thickness: approx. 1.4mm (0.055in) [Material] Sterling silver [Finish] Polished / Matte [Shipping times] This product is a made to order item, and it will be dispatched within 12 working days (Monday through Friday except for national holidays and company holidays).