MiLTAT 20mm Matte Black Thick Nato Watch Band / Strap Ballistic Nylon, Polished Buckle, Sports Use Shipping Estimate : 7 - 10 Business Days within US. Hardware : Polished Material : 1.5mm Thickness G10 Nylon Wrist size : Approximately 150mm (6 inch) to 230mm (9inch) Design to fit 21mm : All watches with 21mm lug width