?Material?Changing suede leather?Core material?Soft leather core?Base material?First layer waterproof breathable oil leather?With buckle?S012 Steel buckle S012 Black buckle?Interface Type?Flat mouth & Steel pass?Wearing type?Business Casual Sports Rough?OEM/ODM?Available ?Reminder:?This product is made of high-grade first-class cowhide or rare animal skins, without any coating on the surface. Each pair of strap will have a little difference of color or grain, which is a unique feature of the premium leather.Parameters:Connection head widthConnection?buckle widthLong belt lengthShort belt lengthThickness18MM16MM125MM75MM5.5MM-3.0MM20MM18MM125MM75MM5.5MM-3.0MM22MM20MM125MM75MM5.5MM-3.0MM24MM22MM125MM75MM5.5MM-3.0MM26MM22MM125MM75MM5.5MM-3.0MMThis watch leather band?is suitable for a variety of flat head interface watch;Used in smart watches such as Apple/Samsung;Size 24MM can be equipped with male models (42 inches) Apple Watch,Size 22MM can match female models (38 inches) Apple Watch,?Can also be used with Samsung GEAR S2/S3, Huawei WATCH2 and so on! http://www.amgstrap.com/leather...leather-watch-bands.html