This is a CASIO watch strap, 20mm lug width, made of stainless steel. It has a solid construction, so it would likely look good on a sports model like a G-Shock. There are some minor scratches from use. Although I have cleaned it with ultrasonic cleaning before listing, please refrain from purchasing if you are looking for the quality of a new product. Thank you. - Brand: CASIO - Material: Stainless Steel - Width: 20mm lug width, the shoulder part of the strap end is about 24mm. Thank you for viewing. Please feel free to ask any questions. Thank you. #watchstrap #20mm #CASIO