Adjustable: Each size set adjusts so that it can fit your wrist exactly! Sleek: Slimline and looks great with any outfit! Size options: Choose from 2 sizes - 38-40mm and 42-44mm. Watch strap: Grab yourself a pair of iOS compatible watch straps. Colours: Each set comes with both black and white strap options. Ios Compatible Watch Straps | White | Living Social