Nato Watch Strap, 18mm, Heat Sealed G10 Nylon, Brushed Buckle, Matte Black Shipping Estimate : 7 - 10 Business Days within US. Color : Black Wrist size : Approximately 150mm (6 inch) to 230mm (9inch) Buckle : Heavy duty 316L Brushed stainless steel Design to fit 18mm lug width