Detailed with rubberized center links, this Apple Watch® replacement band is both stylish and versatile. 38/40/41mm model Band circumference including Apple Watch® device: 178mm-193mm (7"-7.5") Band width: 18mm 42/44/45/Ultra(49mm) model Band circumference including Apple Watch® device: 182mm-197mm (7-7.75") Band width: 20mm