I bought this for a CasiOak, but the watch itself broke, so I'm selling this band. I wore it for about a week indoors. Adjustment tools are also included. Made of 316L stainless steel, it is durable, rust-resistant, and employs precise processing techniques and precision polishing methods, making it easy to attach and detach. The improved metal band fits perfectly without any gaps. Band length: 185mm, size adjustment tool, and quick-release spring bars included. Applicable models: GM-B2100 GA-B2100 GA-2100 GA-2110 Glossy black