This is a 16mm rubber band. This is a high quality white rubber band with a blue loop and stainless steel buckle that fits to Casio Models:GA-100, G-120, GA-300, GW-8900, GA-110C, GD-100, GA-120BB, G-8900 and GR-8900 watches.
Outside Lugs: 29mm
Inside Lugs: 16mm