Features: * Fit for any smart watch or traditional watch with 20mm spring bars. * Cut and crafted from premium stainless steel, resistant to rust and corrosion, ensuring both durability and nobility. * Polished finish and electroplating process feature an smooth and shinny surface that lasts for a long time without easy color fading. * Fit well the wrist radian, making it more comfortable to wear. * Butterfly buckle with double push buttons offers an extra security protection, easy to lock and remove. * 10 kinds of colors can be selected freely, elegant and stylish, suitable for different screen collocations.