Compatible for Apple Watch ( 38mm ) Apple Watch Strap Adapters Metal Axle Connectors For Apple Watch Size 38mm - Replacement Stainless Steel/Leather Band Bracelet Allows You To Change Straps On Your Apple Watch Anytime you want.You need to prepare a Screw Driver ( included ) For Easy installationMaterial: Stainless SteelColor ; Premium Silver Metal Axle ConnectorsPackage included :2 x Metal Axle Connectors1 x Screw DriverNote : Smart Watch & Wristband/Bracelet are Not inclued