Using this leather band is easy. First, select the appropriate end - piece for your watch size (either 38/40/41/42mm or 42/44/45/46/49mm for Apple Watch® or 20mm for Samsung Galaxy Watch®). Then, attach the band to your watch. When wearing, adjust the band to a comfortable tightness. As for maintenance, keep it away from sharp objects to avoid scratches. Clean it gently with a soft, dry cloth. Avoid exposing it to excessive moisture or heat, as this can damage the leather. If you're not using it, store it in a cool, dry place.