Withings / Nokia Activité and Steel HR | Retro Quick Release Two-piece NATO style Watch Band Each band includes two integrated stainless steel quick release spring bars (pins). These smartwatch bands allow you to enjoy the classic look of a NATO-style strap without having to forego the quick-release functionality. They are water-resistant, colorfast, and feature two nylon keeper loops for a more comfortable fit. Swap out in just a few seconds and without tools! Size: Fits wrists 5" to 8".