Nylon and leather stitching style strap, bring a different experience to your watch, breathable and comfortable, compatible with Casio such as AQ-S810W, AE-1000W, AE-1100, AE-1200WH, AE-1300WH, SGW-500, SGW300, SGW-400H, W-S200H, W-735H, W-S210, W-800H, W-216/210/200, AEQ-110, F-108, MRW-200H, MRW-S300 etc. , with a connector size of 18mm (0.7"). These straps also fit hundreds of other traditional and smartwatches with standard 18mm lug widths