Natural high-quality resin strap, waterproof and sweatproof, durable and comfortable to wear Compatible with Casio AE-1000W AE-1300 AE-1200 SGW-300H SGW-400H SGW-500H AQ-S810 AQ-S810W AQ-S800W W-S200H W-800H W-216H W-735H F-108WH W-215 AEQ-110 model watch band（the interface size is 18mm (0.7") Please make sure your watch model is listed in the description before purchasing, if not, use a metric ruler to measure the lug width or the width of the current strap connection (18mm (0.7")).To save your precious time and effort, and avoid the hassle of returns and exchanges, choose the correct size for your watch. It is very important to be accurate to the millimeter High quality stainless steel buckle, durable If you have any technical problems or quality problems, please contact us, we will be happy to resend replacement straps or accessories, please buy with confidence Natural Resin material, safe and assured, Compatible with Casio AE-1000W AE-1300 AE-1200 SGW-300H SGW-400H SGW-500H AQ-S810 AQ-S810W AQ-S800W W-S200H W-800H W-216H W-735H F-108WH W-215 AEQ-110 model watch band（the interface size is 18mm (0.7")