The band and case are compatible with all Apple Watches 38MM, 40MM, 41MM, 42MM, 44MM, 45MM, Series 1-9
(Tip:Your watch size is written on its back)
The case is made of high quality Silicone, Giving you super comfortable wearing experience. The high quality stainless steel band comes with deployment clasp mechanism to make the watch band sit precisely and securely. giving the watch maximum protection while keeping it lightweight and stylish.