Compatible series: Compatible with all Apple Watch 38/40/42/44mm series 5/4/3/2/1, Sport, Hermes, Nike +, Edition Strap material: Alloy Pin buckle, connector material: 316L stainless steel Size: 5.1-8.3 inches Packing list: strap 38/40/42/44mm × 1, Disassembly needle × 1, Packing box × 1 (Watch is not included) Note: The watch comes in a variety of colors and you can choose your favorite color to purchase. Before buying, please confirm that your Watch is 38/40mm or 42/44mm, and choose according to your specifications. If there is any confussion before or after ordering, just contact us, we would provide the best service for you.