Compatible Models: The textile woven loop nylon band suitable for Apple watch 49mm 45mm 44mm 42mm 41mm 40mm 38mm,for Apple watch Ultra & Series 8 7 6 5 4 3 2 1,iWatch SE. Premium Material:Made from skin-friendly Nylon material, Smartwatch bands for iWatch straps are lightweight, thin, flexible, durable,prevent skin from irritation,which feels comfortable next to your skin. Adjustable Size:40mm/41mm size and 44mm/45mm/49mm size.This strap has a wide adjustment range,Its resize band fit wrist is about 5.90"-8.66"(150mm-220mm).You just need to choose the size that suits your watch. Humanized Design:The metal buckle will be on the side of the wrist after the strap is put on. The wrist will not squeeze into the metal buckle in daily work, so the wrist will remain relaxed. After-Sales Service:If you have any doubt about our products,please contact us and we will solve your problem within 24 hours.