"Selection of high-quality materials, waterproof, sweat resistant, wear comfortable. Perfect for replacement hublot big bang 19mm*25mm*22mm watch Bandwidth: long belt 110mm, short belt 80mm. You can get :1 set of watch band, 1 tool, 2 special spring pins After receiving the strap, please do not rush to install, first compare with your original strap and dial, determine the appropriate, and then install. If you have any questions, please feel free to leave a message to customer service, customer service will reply to you within 24 hours"