Nylon and leather stitching style strap, bring a different experience to your watch,breathable and comfortable, compatible with Casio such as GA-100/110/120/150/300/400/2100, GD100/GD120/GD350,G-5600/8900/G7700/G7710,DW5000/5600/5600E/6900/9052/GW-M5610/5000/5035,AWG-M100,AWR-M100,AW590/591,GW9400,GL-7200/GLS-5600/GW-M5610/G-8900/GLS-8900 etc.,with a connector size of 16mm (0.63"). These straps also fit hundreds of other traditional and smartwatches with standard 16mm lug widths