The strap is made of high quality resin material, waterproof, sweat resistant, soft and comfortable. Applicable model: Compatible with Casio g-shock MCW-100 110H W-S220 HDD-S100 AE-2000W 5434 watch band. Bandwidth: See detailed picture for specific dimensions. What you get: a watch band, a tool, and three 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.