This is the fixed width version. Will include premium stainless steel springbars for 17mm and 18mm watchbands + handy watchband springbar replacement tool.Classic black finish top shells offer a stylish appearance suitable for business or casual wear.All stainless steel construction coated with a black PVD plating provides high strength & resistance against water & sweat.A large expansion range of up to 5" inches will allow you to easily put on and take off your watch without having to struggle with a buckle. Twist-O-Flex’s bottom box and side edge design greatly reduces any hair pulling or pinching. Actual band width is 15mm. BONUS: 2 extra springbars (for a total of 4); one set more flexible (17mm to 18mm) and another for fixed 18mm.