Buckle closure Premium Material: Made of high quality silicone, these sport straps are lightweight, waterproof, sweat resistant and durable. Very soft and comfortable to wear. Compatible Models: Accurately and seamlessly suitable for Apple watch 38mm / 40mm / 41mm / 42mm / 44mm / 45mm iWatch SE & Series 7, Series 6, Series 5, Series 4, Series 3, Series 2, Series 1, Sport, Edition, all versions. NOTICE: 38mm/40mm/41mm sizes are made for 38mm and 40mm and 41mm apple watch, 42mm/44mm/45mm sizes are made for 42mm and 44mm and 45mm apple watch. Please choose the correct watch model and size for yourself. Convenient Design: The wristband is designed with Aluminum Buckle, easy to clip on and remove by hand without tool, holds your watch band securely in place. Fashion Look: Have various fashinable and beautiful pattern,decorate your watch and your mood, suitable for many occasions and best gift for women, girls and friends. Give your smart watch a lovely complement and change the look of your watch just by swapping out straps. Refund Guarantee: If there are any defects you can't accept, please apply for a full refund.